There are tons of Christmas CD's done by rock groups...such as: The Moody Blues, Jethro Tull, Lynyrd Skynyrd, Nitty Gritty Dirt Band (don't laugh...this one is great !), etc. and a bunch more done by country artists like John Anderson, Dwight Yoakum, Sammy Kershaw, etc.
Happy Hunting !
p.s. I really love the Jethro Tull CD.