Malachi Green (born November 29, 2003), known professionally as Yung Kayo, is an American rapper from Washington, D.C. who is currently signed to American rapper Young Thug's record label YSL Records[5] in a joint venture with 300 Entertainment.

[7] In 2019, he released his song "Glitch" which captured the attention of American rapper Young Thug.

[8] On April 16, 2021, the YSL Records album Slime Language 2 was released, which features Green on two tracks: "Proud of You" with Lil Uzi Vert, and "GFU".

[6] On November 29, 2022, on his 19th birthday, he released his EP Nineteen with an appearance from late American rapper and YSL Records signee Lil Keed.

It smartly excises the flatter, more predictable modes he occasionally lapsed into on his earlier EPs, instead finding him at his most concentratedly chaotic, a steady dose of ungovernable energy.