Know any modern-ish christmas songs?

I have been charged with the task of embling a 45 min to an hour long playlist of christmas music for a diverse crowd of employees of a retail store. Can't be anything too racey, so no Hollywood Undead (already tried Christmas in Hollywood and was told no) I found some Cascada, Britney, Christina, KT Tunstall, TLC, Chris Brown, and Lady Gaga to mix in with the clic Boyz II Men, Mariah Carrey, Bing Crosby, Brian Setzer, Run DMC, and Brenda Lee. Any ideas will be much appreciated.