Legend, real name John Stephen, is the 34th recipient of the title. The first was Mel Gibson, then 29, in 1985.
Describing Legend as having a "buttery voice and unparalleled musical skills", People said his seamstress mum was his first and biggest fan.
"Whenever we had opportunities to sing in church or in school, my mom would suggest that I do it," he said. "She always encouraged me."
Legend's parents taught him to be humble and kind, People reported.
"I'm so proud that I have a wife and two kids I'm so in love with and so connected to. I'm also so proud of my career," he says. "I love writing songs and performing on stage. I get a lot of joy from it and give a lot of joy to other people. I'm pretty at ease with myself now!"
Legend, a coach on reality TV singing talent quest The Voice won his first Grammy in 2006. People described him as "unabashedly in love with his wife Chrissy Teigen and a doting father to their kids, 3½-year-old daughter Luna and 18-month-old son Miles".