The stars join previously announced performers Mariah Carey and Tim McGraw on the NBC special
Cher also recently performed on the season finale of NBC's "The Voice" and appeared on sister cable network Bravo's late night talk show, "Watch What Happens Live." Her upcoming album, "Woman's World," is out on Sept. 24.
Swift is currently touring North America in support of her album, "Red." Gomez is promoting her newly released album, "Stars Dance," and is set to start a tour in August. Pitbull's single with Christina Aguilera, "Feel This Moment," is a Top 10 hit.
With more than 40,000 fireworks, the show is the largest pyrotechnics display in the United States. This year, Usher ("The Voice") will lend his artistic vision to the show as its first superstar collaboration.
Produced by Universal Television in association with Macy's, Brad Lachman will executive produced with producer Bill Bracken.