We've seen a micro-mini dress, see-through tops, sequins and a lot of cleavage at the previous Burlesque premieres, so it's no surprise that the diva duo continued to follow suit at the Leicester Square event last night.
Christina went glam in a satin LBD by Stella McCartney, a pair of Louboutins and a faux fur wrap, while Cher made yet another style statement in a sheer Julien McDondald gown.
Someone had obviously forgotten to mention that Cheryl Cole wore the same dress earlier this year.
How do you rate the stars' latest red carpet style? Leave a comment below and take a look through Christina and Cher's style evolutions to see how much the leading ladies have changed.
See the all the action from last night's premiere in the video below.