Abstract said:
Kinda not.
Uh oh, showing your age.
"Baby Got Back" is a song by Sir Mix-A-Lot, and the song starts off with the now infamous phrase "I like big butts and I cannot lie, no other brother can deny....."
We all get older!
It looks like "Baby Got Back" was written by Anthony Ray.
On Disc 1 (my bad about Disc 2) there is a selection under Special Features called:
"Shrek in the Swamp Karaoke Dance Party"
In that selection, there is a portion where the Donkey (Eddie Murphy) is singing to his dragon. He says:
Yeah,
I like big butts and I cannot lie,
you other brothers can't deny,
and when a girl walks in with an itty, bitty, waist
and a round thing in your face,
you get...
At this point the dragon smacks him with her tail so that ends his portion at that time and the next singer continues.
So it looks like Sir Mix-A-Lot and the movie "Shrek" licensed the song from Anthony Ray.