This is a song in Cookies for Einstein.
YW+D : Whenever we're feeling blue, Here's what we always do. When your face is long sing the Acme Song! You'll feel so fresh and new!
Yakko: There's the A that's first, there's a C that's next, there's an M, you're almost done. There's the E, it's last Now spell it out A - C - M - E That's fun!
Wakko: (spoken) Now backwards! (sung) There's the E that's last. There's the M it's next. There's C you're almost done. There's the A, it's first. What's first is last E - M - C - A we're done!
Yakko: Pretty good Wakko, but your a always looks like a 2?