@@cremenougat this is actually jojis brother lol in one of his older videos jojivlogs he mentioned that he has a brother and often makes music with thats why in one of his interviews he said him his brother and some friends were making music as a joke like making fun of students in their class! I think his brother is named lenard or something idk he's very secretive.
Maybe idk i heard him say in one of the jojivlogs he had a brother that he always hangs out with maybe its just really close friends or something but i remember in one of his concerts he said "SHOUT OUT TO MY BROTHER!!!"@@cremenougat