Pentatonix’s Kevin Olusola joins “The Jennifer Hudson Show” and reveals how he got recruited into an a cappella group — while singing in the shower!

Pentatonix tackled the ever popular 'Hallelujah' by Leonard Cohen and knocked it out the park.

Pentatonix is an American a cappella group from Arlington, Texas, currently consisting of vocalists Scott Hoying, Mitch Grassi, Kirstin Maldonado, Kevin Olusola, and Matt Sallee.