Christmas in Harmony is the fourth studio album by American pop group Wilson Phillips. A Christmas album, it is their first in six years, after their 2004 covers album California. The album sees them reunite with Glen Ballard, who also produced their first two albums. It is the first Christmas album of the group, although the Wilson sisters released a Christmas album in 1993, titled Hey Santa!, and Carnie Wilson released a solo Christmas album titled Christmas with Carnie in 2007. It includes a mixture of traditional Christmas carols, covers of Christmas themed songs and new compositions. The song "Warm Lovin' Christmastime" was written by Carnie's husband, Rob Bonfiglio, and was originally included on Carnie's solo Christmas album. The first single released was "I Wish It Could Be Christmas Every Day", and the group filmed a video for it. Track listing Personnel Wilson Phillips Chynna Phillips – vocals Carnie Wilson – vocals Wendy Wilson – vocals Musicians Zac Rae – keyboards, rhythm arrangements (1-12) Glen Ballard – synthesizers, rhythm arrangements (1-12) Rob Bonfiglio – programming, scat Scott Campbell – programming David Levita – guitars Simon Smith – bass Blair Sinta – drums Kim Hutchcroft – saxophones Brian Wilson – arrangements (13) Production Producer – Glen Ballard Executive Producers – Rick Blaskey, David Simone and Winston Simone. Vocal Production – Rob Bonfiglio and Carnie Wilson Vocal Arrangements – Glen Ballard and Wilson Phillips Engineers – Rob Bonfiglio, Scott Campbell and Bill Malina. Assistant Engineer – Brian Warwick Mixing – Scott Campbell and Bill Malina Editing – Scott Campbell and Brian Warwick Mastered by Stephen Marcussen at Marcussen Mastering (Hollywood, California). A&R – Gregory Davidson and Cathleen Murphy Production Coordinator – Jolie Levine Project Coordinator – Angela Vicari Project Development – Laura Kazan and Jennifer Liebeskind Art Direction – Roxanne Silmak Package Design – Jeff Schultz Photography – Randee St. Nicholas Manager – Alex Miller Charts References Albums produced by Glen Ballard Wilson Phillips albums 2010 Christmas albums Christmas albums by American artists Pop Christmas albums