Christina wowed the crowds with a rendition of Jackson's classic hit Dirty Diana as well as the track Smile, which was released on his HIStory album.
Whilst on her whirlwind trip the singer found time to unwind…and get into the Halloween mood early…with a trip to the London Dungeon
in England's capital.
She seemed in excellent spirits as she hammed it up in the stocks for photos, surrounded by some of the creepy characters from the attraction's cast.
After a few years of career-slumpage with underperforming "comeback" album Bionic and lukewarm reviews for her film debut in Burlesque, the performer's star is on the rise again. She has been well received for her judging and mentoring role on hit US American Idol rival show The Voice, and her feature spot on co-judge Adam Levine's band's current smash Moves Like Jagger has spent six weeks at number two in the UK and topped the US Billboard chart.
Rumours have been circulating for some time that Aguilera may hit the West End stage at some point in the future, possibly in some form of cabaret/burlesque show. We can't wait!