AcapellaApp: NEW #POPUP CHALLENGE - Enter to win a feature on #AcapellaAppStore Theme - duets #collab with your favorite Acapella artist for a chance to be featured on the Acapella App Store, exclusive Acapella t-shirt and a promo code to unlock 1 year subscription. Submit your video by May 21, 2017 and tag #PopUp. Winner announced on May 22, 2017. Good Luck! #acapella #brycemerritt #popupchallenge