Baby is a song by Canadian recording artist Justin Bieber. Leopold hates this song and smashes his keyboard when he hears it.
- In episode 55, Mrs. Sukscox played this when Leopold was doing an essay about Justin.
- In episode 62, Leopold sent this song to Stephen Quire as a prank.
- In episode 8, Harold's workmate, John Edwards, sent him this song. He soon got the Bieber Fever until he watched some Bieber fails.