The Secret of Christmas is the a studio Christmas album from the pop duo The Captain & Tennille. The Secret of Christmas is a collection of Holiday and Christmas songs predominantly recorded in 2006 and released in 2007 by the independent label, Retroactive Entertainment. "Here Comes Santa Claus", however, was an instrumental track Daryl Dragon recorded in the 1980s.
According to the liner notes, two tracks chosen were originally sung by Judy Garland ("Merry Christmas" and "Have Yourself a Merry Little Christmas"). The album also includes The Beach Boys "Little Saint Nick", which includes the original tracks from their 1976 Captain and Tennille Christmas Special. Daryl Dragon is featured on three instrumental tracks.
The album was produced by Toni Tennille and Daryl Dragon and was originally released only on compact disc. Within the liner notes, there is a photo of their bulldogs, similar to the cover of The Captain & Tennille’s first album, Love Will Keep Us Together.