Christina Aguilera Rocks 'The Voice'

Pop diva Christina Aguilera had quite a busy night on Tuesday's episode of 'The Voice' on NBC - Besides judging, the American star joined her fellow show judges Adam Levine, Cee-Lo and Blake Shelton in a grandiose performance of the Queen classic "We Are The Champions". But that wasn't it all! Later on the show, Xtina alongside her team of contestants performed a divalicious rendition of "Lady Marmalade", a song Ms Aguilera knows very well since she recorded a cover with Mya, Pink and Lil' Kim for the "Moulin Rouge" film soundtrack in 2001. Good times! Anyhow, Christina delivered a good energetic performance, with a great dose of her trademark vocals, but the good thing was that she didn't stole the whole spotlight for her, she shared the SHINE with the contestants. Frenchie nailed it!