Swedish songwriter Max Martin has co-written more hits than anyone else this year:
- Britney Spears: Hold It Against Me, Til the World Ends
- Avril Lavigne: What the Hell
- Ke$ha: Kiss N Tell, Blow, Grow a Pear
- Katy Perry: California Girls, Teenage Dream, Last Friday (T.G.I.F.) and E.T
- P!nk: F**king Perfect, Raise Your Glass
- Glee: A Loser Like Me
Full list of Top Songwriters here.