Watch them blast through mega-hit ‘New Americana’ and Panic!’s ‘I Write Sins Not Tragedies’
‘Colors’ is the third single from last year’s ‘Badlands’.
The performances came as Halsey takes a quick break from her Badlands tour to visit Radio One and their live lounge.
The stint follows on from a number of European and UK dates next month.
LCD Soundsystem, FIDLAR, Bully and Lamb of God are also on board for the US festival.
Brendon performed the cover on Periscope.