Christina Aguilera [1] doesn't turn 36 until Dec. 18, but the Voice coach already got a head start on the birthday festivities. Over the weekend, Christina was surrounded by family and friends as she rang in her birthday at a nightclub in LA. Christina went all out for her bash, rocking a multicolored fur coat, sparkly sunglasses, and a huge pink wig. In addition to commemorating her special day with fiancé Matthew Rutler [2], her guests included The Real Housewives' Erika Jayne and Bethenny Frankel, and pal Kylie Jenner showed up to the party dressed up as "Dirrty"-era Christina [3] in a platinum blond and black wig, a black and yellow striped string bikini top, and matching chaps that read "XTINA." Kylie first re-created Christina's iconic look [4] this past Halloween [5], and the singer liked it so much that she asked her to do it again [6]. The resemblance is truly striking, don't you agree?
