Music Battle: Ke$ha vs Owl City and Carly Rae Jepsen

These two songs are a study in opposites, which I kind of think is cool.
Actually, the singers are pretty much inverses, right down to their hair color.

Ke$ha - TiK ToK

Owl City & Carly Rae Jepsen - Good Time

So which do you like more?
My positivity-loving side wants to pick 'Good Time', but Ke$ha is just grungy (is that a word? why, yes it is) enough that I can't help but pick her song as my winner in this face-off.

Previous Music Battles
Sara Bareilles vs Katy Perry
Robin Thicke vs Marvin Gaye and George Clinton