Novelty songs are too easy to list and are pretty much agiven, so heres my others
La Roux - Bulletproof
Mozarts Clarinet Concerto
Wagner - Die Walkure
Lady GaGa - Pokerface
Andre 3000 - Pink and Blue
New Found Glory - I'll Never Love Again
Dizzee Rascal - Bonkers
Black Eyed Peas - I Gotta Feeling
Kylie Minogue - Can't get you outta my Head
Usher - OMG
Tinie Tempah - Pass Out
Gorillaz - Dare
Led Zepplin - Immigrant Song
Cheryl Cole - 3 Words
EDIT for moar:
Fatboy Slim - Weapon of Choice
Will add more when I think of them