Don't You Worry Child Swedish House Mafia feat. John Martin Download 'Don't You Worry Child' on iTunes
Plan B was booed for finishing his BRITs performance with a dancer dressed as a policeman running onto the stage in flames.
A source told Metro: 'I think the crowd were pretty shocked when the man came running onto the stage in flames.
'There were even a few boos'.
The singer/rapper won the BRIT for Best British Male.