That's What Friends Do is a song featured in the episode, "Wormy." The artist who performed it was Chris von Sneidern of LoveCat Music.
Lyrics:
A friend is a friend
Til the end of the end
That's forever and a day
Stay by your side
Won't hear me say goodbye
Come what may
Cause that's what friends do
That's what friends do
Cause that's what friends do
That's what friends do
Cause that's what friends do
That's what friends do
Cause that's what friends do
