my playlist is freaky....I mean everything... 80s hair, 90s grunge, R&B, early & current rock/pop... Just about everything but death metal and hard core rap. I go from iggy pop to Crue to Chuck Berry, Bush, Blondie, Stones, Mumford (great cover of AC/DC "long way to the top if you want to rock & roll" one of my all time favs) to - wait for it - Ricky Martin. Its really bizarre.
I love Shazam so every time I hear a song at a game or even just at a mall that sounds good it gets added to the playlist.