Watch Christina Aguilera's X-Factor Finale Performances (2010)

Christina Aguilera performing Burlesque on the X-Factor

Despite Christina Aguilera giving a performance of Express that made us reminisce about Britney Spear's car crash performance of Gimme more at the MTV awards, her appearance on the X-Factor seems to have done the album no end of good. Sales have reportedly increased by 400% since the weekend!

Watch her X-factor performances below.

Christina Aguilera on Connan and The 2010 American Music Awards

In spite of gaining a little weight-  by Hollywood standards-and looking a little tired, Christina Aguilera is still out there promoting the release of her upcoming film Burlesque.

Firstly at the 2010 American Music Awards where she performed Express and more recently on Late Night With Conan O’Brien where she sang the jazzy, Something got a hold on me.Both Performances were a little sloppy and lacklustre, with her voice sounding darker and heavier than usual.However, there's no denying she still has amazing pipes.

Am I being too harsh? Let me, and the world, know what you thought of the performances.

Christina performs "Express" at the2010 American Music Awards:

Christina performed the movie theme song Express for the first time live at the America Music Awards 2010. Unfortunately, Christina came off more trashy stripper than classy burlesque dancer in this live performance. At least the song and voice sounded good.

Late Night With Conan O’Brien Show "Something Got a Hold On Me"
A 60's inspired ditty about Love getting a hold of a person. Another solid vocal performance, but please Christina we can do with less growling and grunting,it makes listening to you a little painful.