Watch MTV Now To See Why Justin Bieber Doesn't Wear Shirts + Don't Miss 'Never Say Never,' Sun. 8/4 At 8 p.m. ET! (VIDEO)

Why has Justin Bieber been acting so questionably? Find out this Sunday at 8 p.m. during the MTV premiere of "Never Say Never."

OK, Biebs, what's the deal? SPILL.

Have you noticed that our beloved 19-year-old god-king Justin Bieber has been up to some, er... intriguing things these days? Like, what's going on with that monkey? And what's this thing we hear about spitting off balconies? AND THE SHIRTLESSNESS. Always with the shirtlessness! (Note: For the record, we have no objection to Biebs sans shirt. We're just sayin'.)

Well, all may be revealed starting at Bieber O'Clock -- aka, RIGHT NOW -- when JB takes over MTV. That's right: Every hour on the hour for the next 24 hours (say "hour" one more time), MTV will air exclusive, never-before-seen interviews with the Biebs, his crew, his family, and even a few lucky Beliebers as they count down to the Sunday night network television premiere of "Justin Bieber: Never Say Never." WAIT OMG CALM DOWN, there's still more. AHHHH, how are you hands coming through my monitor and strangling me?! WHY IS THAT THE WAY YOU REACT?!?!

Watch Justin Bieber's "Bieber O'Clock" teaser video after the jump.

Anyway, we don't know for sure what Justin will or won't reveal in the coming hours -- he's being all coy in the "Bieber O'Clock" video teaser below. But here's what we DO know: While you're watching the network premiere of "Never Say Never" Sunday, August 5 at 8 p.m. ET, make sure to keep one eye open for a secret hashtag that'll appear only once during the broadcast. If you tweet out that hashtag -- along with this link to the sweepstakes rules -- you'll be entered for a chance to win a special prize! Will it be a velvet painting of a jealous and shirtless ex-Bieber monkey spitting on one of Justin's current primate pals from up on a balcony? Probably not, but there's only one way to find out for sure.

+ Watch Justin Bieber's "Bieber O'Clock" teaser video, and don't miss the network TV premiere of "Never Say Never" on Sunday, August 4 at 8 p.m. ET on MTV.

Photo credit: MTV