I listen to lots of stuff. Some of these bands have albums that I own, some of them just have a single or two that I really like.
Ace of Base, Aerosmith, Alice Cooper, Arlo Guthrie, Audio Adrenaline, The Backstreet Boys (don't judge me! LOL), The Beach Boys, The Beastie Boys, Biz Markie, The Bobby Fuller Four, Boston, The Cars, Casting Crowns, The Cranberries, Enfield, Five Iron Frenzy, Hotline Miami soundtrack (really intense electronic music... small doses only), James Taylor, Jars of Clay, Jet Grind Radio soundtrack, Johnny Cash, Johnny Nash, Kansas, Metallica, Michael Jackson, MxPx, Newsboys, No Doubt, P.O.D., RainyMood.com, The Ramones, Richard Marx, Rodrigo y Gabriela, Santana, Scott Joplin (a ragtime piano composer, not a performer), Shiny Toy Guns, Stubbs the Zombie soundtrack (lots of bands covering 50's and 60's songs), Sungha Jung (guitar prodigy on YouTube), Taco, Toto, They Might Be Giants, vkgoeswild (pianist on YouTube), Weird Al Yankovic, The White Stripes, ZZ Top... and various Disney songs.