Alsina was performing at Irving Plaza, Billboard reports, and, in the video below, appears to crumple and fall right off the stage. He did not return to finish his set and the rest of the show was canceled.

At this time Alsina nor his representatives have issued any explanation or statement on his well-being. Alsina recently released a video for his track "No Love (Remix)" that features Nicki Minaj. He performed on the BET Awards in June with Chris Brown and Trey Songz, where he also won Best New Artist and Viewer's Choice awards.