A cappella group Pentatonix gets Hollywood star

Pentatonix became the first a cappella group to receive a star on the Hollywood Walk of Fame on Tuesday (February 21). STORY: The group, made up of Scott Hoying, Mitch Grassi, Kirstin Maldonado, Kevin Olusola and Matt Sallee, has won three Grammys and sold over 10 million records worldwide. "When we were just starting out, we learned quickly the five people that sing a cappella -- Andy was talking about this -- on the Internet claiming they want to win Grammys, sell out arenas, have a star on the Walk of Fame, might be a tough route, but against all odds, it happened," Hoying said. Pentatonix began their careers on the NBC talent show 'The Sing Off', which they won in 2011.