I started listening to metal 7 years ago. In the first years Black, Doom and Brutal Death was all I listened... Lately I starting giving a chance to Thrash, Power, Industrial, Metalcore. These days, I can like anything aside from metal, as long as is not mainstream music. It's easier to mention non metal music that I dislike lol... but hey, I like techno deep, deep house, chillout, trance, classical, folk, funk, punk, rock'n'roll, indie rock, kizomba, bossa nova, mpb. I respect jazz and blues. I really like funk because I grew up listening to it on my parents car :-)

theres a shit ton:

alternative
metal (and some sub genres)
rock
country (Taylor Swift)
dance/dance-pop
electronic/electronica
glam rock
grunge
post-hardcore
pop
hip-hop/rap (Nicki Minaj)
industrial/industrial metal/industrial rock
jazz (Lady Gaga and Tony Bennett's collab album)
metalcore
nu-metal
pop punk

there could be more im forgetting

I listen to a lot of different genres, However, when i was younger all I did was listen to metal.