M.I.A was booed during her headline set London's Lovebox Festival on Saturday (19Jul14) as the show was blighted with technical problems.
The Paper Planes hitmaker complained onstage that she could not hear sound through her earpiece and asked for her microphone to be turned up.
Halfway through the set, she invited members of the audience to dance onstage with her, but shortly afterwards, the sound cut off and the screens went blank.
M.I.A. went offstage during the power cut, which was reportedly caused by an audience member knocking a cable, and returned several minutes later when it was fixed.
She performed three more songs, which were also blighted by poor sound quality, before cutting her set short, prompting boos and complaints from festival-goers on Twitter.com.
Rapper Eminem suffered a similar fate earlier this month (Jul14) when his concert in London was ruined by poor sound quality.