Luke Bryan Performs With Broken Clavicle

Luke Bryan made good on his promise to perform live after breaking his collarbone -- he just used his lower half more than usual ... which was just fine by his fans.

Luke played a show Thursday night in Greenback, Tennessee after breaking his clavicle in a biking accident. He vowed the show would go on, and did NOT disappoint.

Check out the clip -- ladies love a gyrating Luke Bryan ... with or without a sling.

By the way, here's an inside look into the damage.