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Move over, Arnold Schwarzenegger — the Biebs is ripped and ready to rumble! Do YOU think he’s hotter than ever?

Justin Bieber used to be a bit skinny, but we’re drooling over his ridiculous pecs in this hot new fan pic!

Justin, 18, looks shredded in this October 24 shot from his Rosemont, Illinois show. It’s no wonder Selena Gomez loves being with him — he’s a stud!

We love his super-sexy new look — he shouldn’t wear shirts more often!

Justin recently spoke with Power 105.1′s Breakfast Club about his love of boxing to stay fit, and training with troubled champ Floyd Mayweather, Jr.

“He asked me to walk into the ring with him and I did and it was fun. He sent me a text saying ‘I’m really proud of you and everything you’re doing.’”

Do YOU think Justin has the hottest body ever, HollywoodLifers?

– Maxine Studebaker

More Justin Bieber:

1. Justin Bieber’s Tribute To Avalanna On What Would Have Been Her 7th Birthday
2. Keenan Cahill: New ‘The Wanted’ Music Video & Working With Justin Bieber
3. Justin Bieber & Selena Gomez: The Truth About Their Breakup Report