The couple that dances together... belongs together.

Maybe... lol.

Selena just got out of rehab because she had a hard time dealing with her break-up with her Biebs boo.

With that major fact lingering, she probably shouldn't be around him at all right now.

But when you're young and in love...

you often make questionable decisions. Lol... you thought I wsa going to say something else.

Well check out Justin and Selena as they do the "forbidden love dance"... actually it's their "Honey 3" audition tape.

Love their choice of music, john Legends "Ordinary People,"