"Q&A with Mitch Grassi of A Cappella Group, PENTATONIX Talks: New Album, Starring in The Movie, PITCH PERFECT 2, Getting A Shout Out from Beyonce and More! Read more: http://music.allaccess.com/qa-with-mitch-grassi-of-talented-a-cappella-group-pentatonix/#ixzz3TGelZOUb"
October 10, 2014 · by: Nicole DeRosa
ChicagoPride.com (US)
"Pump up the "Volume 1": an interview with Mitch Grassi of Pentatonix"