Usher was helping Justin Bieber make his fortune long before the youngster became the R&B superstar's protege - the teen's version of his future mentor's U GOT IT BAD helped him earn up to $200 (£125)-a-day busking.
The Baby singer grew up without much money and had to perform on the street for his little luxuries - like trips to Disneyland.
He tells Rolling Stone magazine, "I sang I'll Be by Edwin MCCain, You and Me by Lifehouse, U Got It Bad by Usher and Cry Me A River. I'd make $200.
"My mom and I went on vacation to Disneyland with the money I made."