I'm so sick of my playlist

I recently bought 3 months of spotify for $1.00. This was a awesome deal and I love this app so much. The problem is that I listen to the same song over and over again. I kind of just want to delete every song on my playlist and start anew. 
Spotify is awesome because they offer a feature that lets you listen to customized radio stations. Today I listened to Billy Currington’s radio station. He is a awesome country singer, and I adore his music. I found new songs of his that I have never heard of. My boyfriend says I have to check out some new music and see if I like it. I basically only like four genres. The genres I like are Classic rock, Country, metal, and rap. I only like a few rap songs.Its not that I hate the music on my playlist. I just hear it every time I get on my computer. 
Maybe I should venture out of my comfort zone and try something new. I really cant stand pop, so that's out of the question. Maybe I would like blues or jazz.


Does anyone have any references that I should try?