After doing it once on Saturday at the request of manager Scooter Braun (and subsequently nominating President Obama, Ellen DeGeneres and actor Chris D'Elia), the singer did it again yesterday afternoon.
This time, he challenged "Beliebers all over the world" to do it...while he stood in front of the camera shirtless (he wore a long tank the first go round)...with his white Calvin Kleins peeking out of his shorts. The last bit further fueled rumors that he's the new CK spokesmodel. Not that we're complaining!
Interesting tactic, Biebs! If his fans were hesitant to dump ice water on themselves, they surely changed their minds after he raised temps with his hot bod and teased them by pulling his shorts down.
"I know you got an ice bucket somewhere," said Justin, who curiously used a cooking pot and wastebasket in his challenges. But that's none of our business. Well, you heard the guy. It's your turn!
Check out how his on-again girlfriend, Selena Gomez, and her BFF, Taylor Swift, fared by clicking here.
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Gallery | Celebs Who Have Accepted the ALS Ice Bucket Challenge