Yuletide supergroup Band Of Merrymakers have released their debut single "Must Be Christmas" via iTunes, with a portion of the proceeds benefitting the MusiCares Foundation.

Band Of Merrymakers formed with goal of helping raise awareness and donations for nonprofit organizations and charities. The group currently features GRAMMY winner Charles Kelley of Lady Antebellum, Fitz of Fitz And The Tantrums, Tyler Glenn of Neon Trees, Kevin Griffin of Better Than Ezra, and Nick Hexum of 311, among others.

"Must Be Christmas" was co-written by Griffin and Sam Hollander. Below is the official music video for the song, which was filmed in Los Angeles and Nashville, Tenn.