Happy Tunes

You know, i'm not a fan of happy music but i recommend "Terror On The High Seas" from Alestorm.
 
Yeah, when I read that I just assumed you meant the title track. The lyics just immediately popped in my head.

"IIIIIII feel so in-VINCIBLE!"
"IIIII'm the man made out of CLAY!"

Song is actually really depressing if you look at the lyrics, but...yeah. Really happy melodies.

Any Alestorm for cheesy awesomeness.
Bloodbath - Eaten (don't ask me why, always makes me feel happier)
Yeah, same here...weird. Best song ever.