Dr. Coconut

It's a Spa Day is a song in the episode, Spa Day, where it mixes hip-hop and alternate versions to demonstate the ultimately popular Spa in which Phineas and Ferb built.

Lyrics
(Hula Singers Harmonizing) Singers:Dr. Coconut, Look out, Here he comes, Dr. Coconut, Look out, Here he comes. Dr. Coconut!