Sound tracks usually never sell well.
The other movie musicals that have sold well are Dreamgirls and Hairspray which both went Platinum, but Hairspray had Queen Latifah and Zac Efron and Dreamgirls had Bey and J-Hud.
Never the less, Burlesque had Cher and Xtina, but I think, being a typical musical lover, the music was too non-musical, and pop for musical lovers, and the movie was bad in general.
