Christina Aguilera continues the promotional push for her latest project, Burlesque ... and last night on Dancing With the Stars, Xtina showed us what a true live performer sounds like.

The sexy mama of one belted out the song, Show Me How You Burlesque ... the lead track from the Burlesque soundtrack.

There's no denying that Christina has evolved from a young pop star to a voluptuous world-class performer.

Looks like no amount of drama from her personal life is going to get in the way of this girl giving it her all. Loves it!