Credit: Splash News

Hold onto your sideways baseball hats, y'all: Justin Bieber is coming to X Factor. That's right, you better Belieb it! Everyone's favorite prepubescent singing sensation has been tapped by L.A. Reid to be a "guest mentor" this season, which means he will dish out sage words of wisdom to contestants.

In case you aren't hip to X Factor's rules and regulations, each judge gets to pick a celebrity mentor to give advice to contestants, and if L.A. nabbed Justin, we can't wait to find out who's mentoring for Britney Spears, Demi Lovato, and Simon Cowell! Oh wait: we already know Demi is teaming up with ex-almost-brother-in-law Nick Jonas

According to TMZ, The Biebs visited a home in the Hollywood Hills to impart a few life lessons to L.A.'s "squad," which we assume included gems like "never wear pants that actually fit you" and "giant tattoos of Jesus are always a good idea."

Tune into the premiere of X Factor Wednesday Sept 12th at 8ET.

Source: TMZ