The superstar joined fellow celebrities such as Katy Perry, Oprah Winfrey, and Christina Aguilera in backing the Democratic ticket ahead of Election Day.

Celebrities, including Oprah Winfrey, DJ Jazzy Jeff, and Fat Joe will join Harris on the steps of the Art Museum of Phildelphia for the free event in the city, which will start at 5 p.m. to 10 p.m. Harris is not expected to address the crowd till around 11 p.m.

Lady Gaga will join Vice President Kamala Harris at her final rally of the campaign Monday night in Philadelphia. It is the first campaign appearance f