Carrie Underwood, Kellie Pickler and Gloriana are among the artists featured on the new holiday collection, 'A Very Special Christmas, Volume 7.'

Carrie performs 'Hark! The Herald Angels Sing,' while Kellie contributes 'Santa Baby.' Gloriana offers up 'Silent Night' on the 13 track collection, which also includes songs by Miley Cyrus, Colbie Caillat, the Carter Twins and Ashley Tisdale, among others.

All proceeds from the project, out this week, will benefit the Special Olympics. In total, the franchise has raised more than $100-million for the organization since its first release in 1986.