LOS ANGELES (AP)-- Britney Spears may not sing at MTV's 25th Video Music Awards, but Christina Aguilera will.

Aguilera tomorrow will join other top-name performers, including the Jonas Brothers, T.I., Pink, and Kid Rock, host Russell Brand announced Thursday.

Speaking to reporters on the back lot of the Paramount Studios in Hollywood, Brand bantered with Aguilera, who emerged from a limousine, and rapper T.I., who shimmied down a fire escape on a street made to look like New York.

Brand, an English comedian who appeared in the summer movie "Forgetting Sarah Marshall," kept the buzz going about the VMAs, an awards show known for creating infamous pop culture moments. Kanye West has signed on to close the show with a performance.

Spears will open the show, but won't be performing. She has been nominated for three VMAs, including for video of the year for "Piece of Me."