Songwriter and producer Sean Garrett both produced and performs on this track.
McCartney said on his MySpace site that this track was "a stretch for me. I heard the track and I was like, 'that's fire!' I can't wait to perform it live. I hope when my fans see how much I embrace this different side of me musically, their ears will adjust!"
Robin Thicke and his mom, Gloria Loring are the first the first ever mother-and-son to have both tallied top 10 singles on the Hot 100 as solo artists or duos. Loring reached #2 with Carl Anderson in 1986 with "Friends and Lovers" and Thicke topped the chart in 2013 with "Blurred Lines."
The lyrics for "Mary, Did You Know?" were written by Christian singer and comedian Mark Lowry, after his pastor asked him to write a Christmas musical for their church. Southern gospel musician Buddy Greene later added music to his words.