Pentatonix Performs A Cappella Cover of Ariana Grande’s ‘Problem’
As the group harmonizes for the high notes, Mitch Grassi taps in for Iggy Azalea‘s sassy rap verse.
Pentatonix also dropped their cover and visual for “We Are Ninjas” off the film Teenage Mutant Ninja Turtles. Their impressive list of renditions also include Pharrell‘s “Happy” and A Great Big World‘s “Say Something.”
Pentatonix’s PTX VOL III EP is out on September 23, but fans can pre-order the seven-track record on iTunes by clicking here.