The fancy hats and finery were out and on display for New York City's annual Easter extravaganza.

Participants in the annual Easter Parade made their way along Manhattan's Fifth Avenue on Sunday in a processional of the wild and whimsical.

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A costumed participant marches during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

The fancy hats and finery were out and on display for New York City's annual Easter extravaganza.

Dogs dressed in costumes participate in the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

These days, people wear a slew of outrageous hats, covered with flowers and feathers and everything in between. Some people dress their pets up as well.

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A costumed participant marches during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A costumed participant marches during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A costumed reveler marches during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A costumed reveler marches during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A costumed participant marches during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A costumed participant marches during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A dog is dressed in a costume during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A dog is dressed in a costume during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A costumed participant marches during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A costumed participant marches during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A participants wears a hat during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019 in New York. (AP PhotoJeenah Moon)

A participants wears a hat during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019 in New York. (AP PhotoJeenah Moon)

A NYPD officer wears rabbit ears during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019 in New York. (AP PhotoJeenah Moon)

A NYPD officer wears rabbit ears during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019 in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019 in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019 in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A participants wears a hat during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019 in New York. (AP PhotoJeenah Moon)

A participants wears a hat during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019 in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019 in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019 in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats poses for a photo during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019 in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats poses for a photo during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019 in New York. (AP PhotoJeenah Moon)

The annual event is a New York City tradition that goes back well over a century, when the wealthy would get dressed in their best and go out for a stroll after Easter church services.

A costumed participant marches during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A costumed participant marches during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

These days, people wear a slew of outrageous hats, covered with flowers and feathers and everything in between. Some people dress their pets up as well.

The most well-known reference to the procession is the movie "Easter Parade" starring Fred Astaire and Judy Garland.

Dogs dressed in costumes participate in the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

Dogs dressed in costumes participate in the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A costumed participant marches during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A costumed participant marches during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A costumed reveler marches during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A costumed reveler marches during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A costumed participant marches during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A costumed participant marches during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A dog is dressed in a costume during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A dog is dressed in a costume during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A costumed participant marches during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A costumed participant marches during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A participants wears a hat during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019 in New York. (AP PhotoJeenah Moon)

A participants wears a hat during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019 in New York. (AP PhotoJeenah Moon)

A NYPD officer wears rabbit ears during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019 in New York. (AP PhotoJeenah Moon)

A NYPD officer wears rabbit ears during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019 in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019 in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019 in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

A participants wears a hat during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019 in New York. (AP PhotoJeenah Moon)

A participants wears a hat during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019 in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019, in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019 in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats march during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019 in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats poses for a photo during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019 in New York. (AP PhotoJeenah Moon)

Participants wearing costumes and hats poses for a photo during the Easter Parade and Bonnet Festival, Sunday, April 21, 2019 in New York. (AP PhotoJeenah Moon)