Do the Backstreet Boys have the smarts to beet Sisqo, Gene Simmons and Mark McGrath to a million dollars?

The boy band has just signed on to appear on two February episodes of "Who Wants To Be A Millionaire" , Wall of Sound reports.

Metallica's Lars Ulrich and the Dixie Chicks' Emily Robison will also take a turn in Regis Philbin's hot seat.

Not all the Boys will give their final answers, though. Only Howie Dorough and Nick Carter will play the game.

Since the celebrity contestants don't really need to win the million, all the money they earn will go to a charity of their choice. Each constant is guaranteed $32,000 for charity just for appearing on the show.

The celebrity editions of "Who Wants To Be A Millionaire" will air Feb. 11 and 14.

-- AllPop