Photo Coverage: Casts of CATS, WAITRESS & More Rehearse for the Macy's Thanksgiving Day Parade!

America's favorite holiday tradition will once again kick off the season of joy as the 90th Annual MACY'S THANKSGIVING DAY PARADE returns to march down the streets of New York on tomorrow morning.

The unparalleled spectacle is set to enthrall more than 3.5 million spectators lining the streets of Manhattan and more than 50 million viewers on television, with a host of giant character balloons, dazzling floats, the nation's best marching bands and performance groups, celebrities, and the official entrance of the one-and-only Santa Claus.

Since its origin in 1924, the Macy's Parade has marked the official start of the holiday season, introducing a cherished march of magic that has dazzled generations of fans. For the 90th edition, the famed spectacle's line-up will feature 16 giant character balloons; 27 novelty/ornament balloons, balloonicles and trycaloons; 26 floats; 1,100 cheerleaders and dancers; more than 1,000 clowns; and 16 marching bands and performance groups.

The special event will feature performances from some of Broadway's hottest shows, including Holiday Inn, Cats, Paramour, Waitress, Hairspray Live!, The Color Purple, On Your Feet!, School of Rock and the Radio City Rockettes. Check out more photos from rehearsals below!

Photo Credit: Genevieve Rafter Keddy

Macy's 90th Thanksgiving Day Parade Rehearses outside it's flagship store in New York City

Sarah McLachlan and The Brooklyn Youth Chorus

Sarah McLachlan

Sarah McLachlan

LunchMoney Lewis

LunchMoney Lewis

Grace VanderWaal

Grace VanderWaal

Rob Resnick and Cal Shapiro of Timeflies

Rob Resnick and Cal Shapiro of Timeflies

Ben Rector

Maddie & Tae

Maddie & Tae

Andee Zeta, Juan Galeano and Daniel Alvarez of Diamante Electrico

Juan Galeano, Andee Zeta and Daniel Alvarez of Diamante Electrico

Kelsea Ballerini

Kelsea Ballerini

Amanda Sudano and AbneR Ramirez of Johnnyswim

AbneR Ramirez and Amanda Sudano of Johnnyswim

Macy's Tap Dancing Christmas Trees

Daya

Daya

Tony Bennett and Miss Piggy

Tony Bennett

Tony Bennett

Tony Bennett

Dr. Teeth and The Electric Mayhem from Sesame Street

Animal of Sesame Street

Miss Piggy

Dr. Teeth and The Electric Mayhem from Sesame Street

The Cast of Cats

Andy Blankenbuehler

Mamie Parris

Georgina Pazcoguin and Quentin Earl Darrington

Mamie Parris

Mamie Parris and The Cast of Cats

Mamie Parris and The Cast of Cats

Kolton Krouse, Georgina Pazcoguin and Daniel Gaymon

Mamie Parris

Jess LeProtto

Quentin Earl Darrington

The Cast of Cats

Ella Dane Morgan and Eric Anderson

Jessie Mueller

Jessie Mueller

Caitlin Houlahan, Jessie Mueller and Charity Angel Dawson

Jessie Mueller

Ella Dane Morgan and Jessie Mueller

Eric Anderson

Jessie Mueller and Drew Gehling

Jessie Mueller and The Cast of Waitress

Jessie Mueller and The Cast of Waitress

Drew Gehling and Jessie Mueller

The Cast of Waitress

The Cast of Waitress

Jessie Mueller, Ella Dane Morgan and Eric Anderson

HAPPY THANKSGIVING!!