Clad in a red and white string bikini top and red-hot chaps, the Keeping Up With the Kardashians star, 19, channeled her inner Xtina as she headed to the Bootsy Bellows Halloween party in Los Angeles with her boyfriend, Tyga, and sisters Kourtney Kardashian and Kendall Jenner.
Jenner paired the incredible ensemble with blond extensions (complete with black braids à la Aguilera), blue contact lenses and faux nose and labret piercings.
The makeup maven shared several photos and videos of herself getting ready for the night out on her Snapchat and Instagram accounts. "Can I be XTINA forever," she captioned a clip of herself dancing to "Dirrty," which was a single from Aguilera's Grammy-winning fourth album, Stripped.
Tyga, 26, also dressed up for the party, arriving in a patriotic outfit inspired by rapper Juelz Santana. He rocked a red, white and blue American flag jacket with matching pants, a bandana and a Detroit Pistons jersey.
A day earlier, Kylie and her rapper beau threw a fun-filled Halloween dinner party complete with spooky snacks, drinks and costumes. They both dressed up as scary skeletons in all-black outfits with white face paint.
Tell Us: Do you think Kylie nailed her Xtina look?