When you're talking about things that you do for entertainment, use the phrase "I'm into ___" For example, if you want to ask someone about their hobbies, it's strange to ask "What are your hobbies?" Instead, I'd ask:
What kind of stuff are you into?
Or, for a more specific question:
What kind of music are you into?
"Get into ___" means to start being into something:
I first got into tennis when I was about eight years old. My sister was on the junior high school tennis team, and I started practicing along with her.