You Oughta Know - Alanis
Workout Plan - Kanye
3x5 - John Mayer
Movin' Right Along - The Muppet Movie
You Don't Own Me - Lesley Gore
Something Glorious - Circadian Rhythm
Can't Take My Eyes off of You - whatever version
Amber - 311
Elephant Love Medley - Moulin Rouge
Hello Dolly - Barbara Streisand, Helloy Dolly
Return of the Singer - Kevin Max

ok so top eleven.
in no particular order... and plenty others that really want to be up there.