Finally -- what we've been waiting for!

On Wednesday night around 7:40pm PST Justin Bieber posted a sweet selfie with on-again girlfriend Selena Gomez, and the two aren't in bed or smooching, but still -- we TOLD you they'd Instagram a shot together sooner or later!

We're not sure if Biebs posted the pic yesterday, because a few hours earlier he uploaded some shots of himself in a different outfit on a private plane, but who cares! This is all the confirmation we needed that Jelena are 100% back on! And not only that, but sources tell X17online that the lovebirds are currently in Canada together!

Over the last week and a half the pop stars have hardly spent a day apart -- on Sunday August 17 he drove her home from his Hollywood Hills mansion in his red Ferrari after she spent the night, and we photographed her just hours after she spent the night at his place last Wednesday and Thursday as well. On Tuesday night JB re-posted a sexy selfie from Selena's account, only to delete it a few minutes later, so we're curious to see if this pic stays up for more than a day...