Katy Perry - Limited in scope to what you could choose, very good song.
Glee - Lets face it, tht was extremely predictable to choose the most popular song and go for the 'safe choice'. Could have easily taken a risk here and given us something unique.
Britney - It's a good song, suitble for the act. Not sure why Jason posted this instead of 'lewispaulfrank' though...
The Script - Probably one of the best bands around atm, seems a suitable song for them to cover. Liked it.
Beyonce - Pretty average, a little dull though.
Christina - Great song and well executed.
Adele - Classic song that suits Adele, great choice.
Alexandra Burke - Choosing an x factor song, a little cheesy and a bit weak.
Rihanna - Greay choice of song, and a very very good cover.
Bon Jovi - Great song choice, well performed. One of the best.
Savannah - Annoying annoying girl! Seriously, why is this act still in the competition?
Enrique - It was unique, and it's a great song. <3
Pink - I liked it. It was a decent performance.