Young Buck has finally crossed the line. While he’s addressed being ousted from G-Unit in songs before, “Steroidz,” a song released onto the internet this weekend, marks the first time Buck launches a full-fledged attack on his former boss, 50 Cent.

In the song’s first verse, Buck alleges that Fif has been paying Hot 97 DJ Funkmaster Flex, implying some form of payola before touching on his recording contract.

“My contract’s f***ed up and yours is too/the next 10 years, you is Jimmy’s h*e, dude/you Eminem’s slave/belong to [Dr.] Dre/think if they tried to hold yo *ss back from getting paid,” he asks.

Buck also accuses 50 of taking steroids and having relations with XXL Magazine’s Editor-In-Chief to get the publication's front cover.

Buck and 50 had a falling out back in 2008. The Nashville rapper started drifting away from the camp when he mentioned making friends with Lil Wayne and Jadakiss— two rappers who were at feuding with 50 at the time. The conflict reached new heights when Fif released a conversation in which a crying Buck begged to come back to his crew.