CAguilera082308_01_X17.jpgChristina Aguilera CAguilera082308_11_X17.jpg

Xtina took the mic at the launch party for the Trump Tower Dubai over the weekend.

The party, held in Los Angeles, gave Mama Aguilera the chance to work it out on the stage!

I don't know what designer she's wearing, but doesn't that ruffle on the bottom totally look like something Project Runway's Christian Siriano would design? FIERCE!