Chris Detrick | The Salt Lake Tribune Singer Alfie Boe performs at the Mormon Tabernacle Choir's Christmas concert at the LDS Conference Center in Salt Lake City on Thursday, Dec. 13, 2012.

The Mormon Tabernacle Choir kicked off Christmas on Thursday with concerts that will continue through Saturday at 8 p.m. at the LDS Conference Center. Tony Award-winning tenor Alfie Boe performed with the Choir during a dress rehearsal Thursday. The concerts are narrated by Tom Brokaw.