When you really think about it, Lynn Harless is the one responsible for bringing sexy back! Justin Timberlake's mom gave birth to the musical prodigy on January 31, 1981, and has helped her son every step of the way on his path to international superstardom. So how does JT show his appreciation? Like any devoted son would: Timberlake has a tattoo of his mom's initials inked on his back. He once told Rolling Stone, "She's been my best friend since I figured out who I wanted to be." These two are definitely in sync.