Soulja Boy Tell'em Calls Justin Bieber's YouTube Game 'Crazy'

'For him to be younger than me and have that amount of people tune in to him,' he says on 'RapFix Live.'

Does [artist id="2814953"]Soulja Boy Tell'em[/artist] have to watch his back online?

[artist id="3187077"]Justin Bieber[/artist] has taken SB's digital playbook (YouTube, Twitter, etc.) and used it to catapult him to success. But when the two Twitter rivals — SB has more than 2 million followers to Bieber's gang of more than 4 million — connected to shoot a Nickelodeon movie earlier this year, they discovered they were actually fans of each other's work.

"He told me how he liked my songs and stuff like that," Soulja Boy revealed during "RapFix Live" on Thursday (August 19). "And I was really going off the stuff I saw on YouTube," he told host Sway of the Biebs. "His YouTube views was up there, and for me coming off of YouTube, that's crazy ... for him to be younger than me and have that amount of people tune in to him."

But while SB didn't make any plans, at least on-air, to collaborate with Bieber, he did accept an offer to record together from last week's "RapFix Live" guest, Lloyd Banks.

Meanwhile, the 20-year-old rapper is putting the finishing touches on his forthcoming album, The DeAndre Way, which is set for a fall release. His tentative next single is the Boi-1da-helmed "Speakers Going Hammer."

"Basically, it's all about the sound of the music," SB told MTV News last month about the track. "I got bars on this one. First verse, second verse, all bars — another anthem, as far as the hook. The hook is catchy. The video is gonna match the song perfect. And it's another hit.

Who do you follow on Twitter: Soulja Boy, Justin Bieber or both? Let us know in the comments!