During a performance at South By Southwest’s Spotify House on Monday, Run The Jewels were attacked by someone from the audience. In video taken at the event, it looks like the person in question walks up onto the stage and attempts to punch one of them, but is intercepted and chased off the stage by Killer Mike, El-P, and their security team. Another video shows the same man fighting in the crowd with security guards after rushing the stage. The two rappers weren’t happy with the interruption, and Killer Mike started a “fuck boy” chant directed at the attacker after the incident. El-P aplogized for the “brief interruption” on Twitter later in the day. Here’s the video from the event:

Don't fuck with @RUNTHEJEWELS #ForRealTho #TheSpotifyHouse #SXSW #WeLive #SpotifyHouse

A video posted by djfreeverse (@djfreeverse) on Mar 16, 2015 at 3:24pm PDT

Go to sleep trying to Run Them Jewels! #SXSW #RunTheJewels #CashThat #SpotifyHouse

A video posted by djfreeverse (@djfreeverse) on Mar 16, 2015 at 3:45pm PDT

#killermike then starts a fuck boy chant. #runthejewels #fuckboy #spotifyhouse #sxsw

A video posted by Ida (@i.da_) on Mar 16, 2015 at 4:31pm PDT

And here are El-P’s tweets acknowledging the incident:

thanks to everyone who watched us rock the @Spotify house! sorry for the brief interruption.

— el-p (@therealelp) March 16, 2015

shout out our dudes stretch, @joe baker and @halfricanchief for holding us the fuck down.

— el-p (@therealelp) March 17, 2015

[Lead image via Instagram, videos via Billboard and Yahoo.]