If you love the jonas brothers then you can't expect to like any good, real music. If you want to try anyway:
The White Stripes, MGMT, Cage the Elephant, The Red Hot Chili Peppers, Steve Vai, The Parlor Mob, Them Crooked Vultures, The Raconteurs, The Dead Weather, Wolfmother, The Kills, Rage Against the Machine, The Black Keys, The Arctic Monkeys, Led Zeppelin, Black Sabbath, U2, AC/DC, Aerosmith, Bon Jovi, Dave Mathews Band, Deep Purple, The Doors, The Eagles, Eric Clapton, Foghat, Foreigner, Grateful Dead, Green Day, Guns N' Roses, Kansas, Jimi Hendrix, Lynyrd Skynyrd, Metallica, Ozzy Osbourne, Pink Floyd, Queen, The Police, The Rolling Stones, Rush, Scorpions, The Strokes, Tenacious D, Van Halen