Justin Bieber Shirtless in First Instagram Video—Watch Now!

Singer has also been tweeting about the NBA Finals game tonight

Did you know there's now video on Instagram?!

If not, don't worry, Justin Bieber is here to show you.

The Biebs took to Instagram today to post his first video from his account, captioning the clip, "Hahaha."

"So crazy news, guys, there's video on Instagram!" the shirtless (natch) singer says with a laugh.

The Biebs was spotted in Miami today, and he's also been tweeting in anticipation of the NBA Finals game tonight where the Heat and the Spurs will square off for the championship title.

"big game tonight. #Game7," he wrote.

We'll be on the lookout for J.B. sitting courtside.