Cheap Trick, Kelly Clarkson, Florence + the Machine, and Shinedown
Well, my favorite music artist was Jim Morrison and the Doors.
Freddy Mercury and Jim Croce are both #1 for me. Slash is my #2. Although I've recently gotten into Mozart.
Everyone is naming older artists, most of which aren't even regularly touring anymore (or dead), so I'll list my favorites who are more recent (and alive).
Foo Fighters, Zaz, Dead Sara, Esperanza Spalding, Molly Marlette, Blue October, The Asteroids Galaxy Tour, Streetlight Manifesto, RX Bandits, Lykke Li, Ed Sheeran, Lamb of God.