Rapper Post Malone proves he has what it takes to be an all-star babysitter, completely nailing two hip-hop lullabies during a guest appearance on the YouTube show “Good Mythical Morning”.

The show features a segment called “Rap-A-Bye Baby on the Hip Hop” where guests must take a traditional nursery rhyme and perform it in a particular style of rap.

Post Malone was given “Old MacDonald” in the style of Migos and “Itsy Bitsy Spider” in the style of The Sugarhill Gang, both of which he completely slays to the astonishment of show hosts Rhett and Link.

Rapping over a crib with a fake baby, the 22-year-old “Rockstar” rapper forgot a few of the words to the lullaby but managed to get himself back on track by the end of the challenge.

RELATED: Post Malone Complains It’s Not Easy To Be A White Rapper — And Twitter Bites Back

Check out the “Itsy Bitsy Spider” clip below and the full 10-minute segment above.