"Baby" is a song that was sung by Finn, with non-melodic accompaniment by Jake, in the episode "The Jiggler." Finn explains that he can sing with an auto-tuned voice because he had swallowed a little computer in the past.
Finn: Baby, (Jake: Ooo!)
Finn: I know what you need, (Jake: What's that?)
Finn: You want your little baby socks...
for your little baby feet. (Jake: Woooo.)
Finn: Baby, (Jake: Yeah?)
Finn: I know what you crave, (Jake: Oh yeah? What's that?)
Finn: You want to poop your pants all day long,
Finn: Baby... you lookin' so good,
You lookin' like you might... want some baby food. (Jake: Keep it goin', man!)
Finn: Baby, you lookin' so fine.
You lookin' like you might... just start cryin'.
Finn: I gotta tuck you in, girl.
I gotta sing you sweet melodies about babies, yeah!
(Jake: Little baby feet!)
- This is the first song that was sung in season 1 and in the Adventure Time series (excluding the theme song).