Meek Mill - I'm Outta The House And Bringing it Down ... With Beyonce

Meek Mill got out of the house Sunday ... which is a big deal since he's been on house arrest, and his destination was Philly where he took the stage at a Beyonce concert.

Meek -- who went to the show with his GF Nicki Minaj -- performed a song with DJ Khaled and Rick Ross.

Meek's house arrest was up last week ... but he screwed up by not performing the approved community service, so the judge tacked on another 8 days.

The concert was judge-approved.