IN THE STREETS & ON THE WEB

CHRIS BROWN SINGING WITH RIHANNA IN ORLANDO NIGHTCLUB!

Chris Brown didn't shy away when the DJ blasted a Rihanna song at an Orlando nightclub this weekend -- instead, he proudly sang along with EVERY lyric ... and TMZ has the footage.

It all went down at Club Vain on Sunday night during an NBA All--Star weekend finale party.

Chris was hanging on the main stage ... with everybody looking at him ... when Rihanna's "We Found Love" began to pump through the speakers ... and Chris made sure everyone knew he's a HUGE fan of the song.

It's the latest in what seems like a public reconciliation between the two sides -- earlier this month, the two collaborated on remixes of each other's songs.

These 2 Mofo's right here Get As Many C'Mon Son Shaq Faces I Can Find