Walking on Sunshine by Katrina and the Waves is an happy, upbeat song.

Took me ages to think of one! LOL As I said, the Blues makes me happy.

There was a song by an Australian group years ago called Frente. They had a song called Accidentally Kelly Street. It was such a bright and happy new sound at the time but when I read some comments by people on the computer about the meaning of the lyrics, it apparently isn't so happy at all. Weird.