A Berklee College of Music professor is teaching kids how to compose rap music and keep it clean.

Coolio's "Gangsta's Paradise" (according to one "clean hip-hop songs" website, Stevie Wonder -- whose song "Pastime Paradise" was sampled by Coolio -- didn't want his music associated with cussin').

Listen to new must-hear R&B/hip-hop songs from artists like Lecrae, Ludmilla, Victoria Monét, Flo Milli, Jae Stephens, Joy Postell, Killer Mike & T.I.

"So annoying," said Cardi, 30, before recalling the recording process for the clean version of her recent single "Bongos" with Megan Thee Stallion.

A Berklee College of Music professor is teaching kids how to compose rap music and keep it clean.