Nas, who will interview Horowitz on stage at SXSW in Austin next week, also outed him as a former rapper. Horowitz owned up to that in another tweet, saying his rap name was MC Tic Toc.

Thug’s “Tick Tock” performance, with head-banging guitar and heroic drum fills, is reminiscent of when the rapper debuted the song during his NPR Tiny desk performance back in August.