Hmm this is a tough one. I'm gonna go with this song since I've probably listened to it about a million times.
You're Gonna Go Far Kid by The Offspring. It holds a special place in my heart from when I was a little chubster finishing last place in every race at the start of the season to the end of the season where I dropped 20 pounds and placed third (inb4 still not #1)
I don't have a favorite song, but I do have a favorite genre. 80s Pop and Rock. It's better than nowadays music.