These people aren't my favorite just some I found yesterday. Alex Clare, Ben Howard, Ed Sheeran (knew about for a little over a month now), Marina & The Diamonds (i love her), The Saturadays (they're cool).
Adele, Arctic Monkeys, Blur, The Clash, The Buzzcocks, Coldplay, The Cult, David Bowie, Def Leppard, DJ Fresh, Rita Ora, Ellie Goulding, Example, Jessie J, Led Zeppelin, Oasis, Mumford & Sons, Professor Green, Queen, Rizzle Kicks, Tinie Tempah.
Manic Street Preachers, Biffy Clyro, David Bowie, The Rolling Stones, Depeche Mode, Muse, Oasis, Arctic Monkeys, The Cure, Radiohead, Cream/Eric Clapton, Athlete, The kinks...loads more that I can't think of, off the top of my head.
Bring Me The Horizon, Asking Alexandria, You Me At Six, Muse, Coldplay, Enter Shikari, Lostprophets, Mika, Stereophonics, Marina & The Diamonds..
Bring Me The Horizon and Bullet For My Valentine! :'D