Here are a few artists I enjoy listening to:

Alexisonfire, The Beatles, Britney Spears, Coldplay, Death Cab for Cutie, Dillon Francis, Ed Sheeran, Ellie Goulding, Florence + the Machine, George Harrison, Imogen Heap, Jónsi, Kate Nash, Lady Gaga, Matthew Good Band, MGMT, Peter Gabriel, The Police, The Postal Service, Regina Spektor, Sia, Sigur Rós, Silversun Pickups, Skrillex, Sublime, The Weeknd.

Those are a few of the main ones I listen to but my itunes is full of music of basically any genre