Kylie Jenner attended Christina Aguilera's birthday party dressed up as the birthday girl.
Christina Aguilera and Kylie Jenner (c) Snapchat
The 'Keeping Up With The Kardashians' star - who donned a recreation of the outfit Christina wore in her 2002 music video 'Dirrty' for Halloween - dressed up like the singer once again as she attended the star's 36th birthday party.
Showing off her black and yellow bikini top and trousers, Kylie shared on Snapchat: "When XTINA wants u to dress as XTINA for her bday you do it !!! (sic)"
Christina didn't want to be outdone as she donned a bright and bold outfit, complete with a candyfloss coloured pink wig.
And it is no surprise Christina asked for Kylie to wear the outfit to her birthday bash as she previously gave the Halloween costume her seal of approval.
She wrote on her Instagram: "YAASSSSS".....Killin it @kyliejenner yes to dirrty 2016!! Get it girrrl!!! (sic)"
One photo Kylie uploaded to the site was captioned with the lyrics from the song: "Dirty, Filthy, Nasty, you nasty yeah. Too dirty to clean my act up...If you ain't dirty..You ain't here to partyyyyy whooo (sic)"
Meanwhile, Kylie has recently revealed she really "would love" to be able to sing.
She said: "It's no secret I love music, especially everything we play on Kylie Radio. And I have some crazy talented friends with beautiful voices, like Justine Skye. I really would love to be able to sing!!!
"It's the one talent I wish I had. Yeah, I've kind played around (did you catch me singing Solange's 'Cranes In The Sky' on Khloé's Snapchat? But to be able to really, really sing would be such a dream. Jordyn [Wood] says I can, but isn't that what best friends are supposed to say? (sic)"
Tagged in Christina Aguilera Kylie Jenner