Grammy Award-winning a cappella group Pentatonix has released their sixth Christmas album, "We Need a Little Christmas."

The album features contemporary holiday tunes, including versions of Ariana Grande's "Santa tell me," "Seasons of Love" from "Rent," and "Once Upon December," from the film "Anastasia."
Christmas classics "Rudolph the Red-Nosed Reindeer," "12 Days of Christmas," "When You Wish Upon a Star," "My Favorite Things," "Jingle Bell Pop," are also included on the album.
A cover of Chris Tomlin's platinum-certified hit "Amazing Grace," which is also in the album, has been released as a single.
The quintet's first five holiday collections have sold over 12.5 million worldwide.
Pentatonix's new album of original songs, "The Lucky Ones," is coming out Feb. 12.