Forever Young: 21 Celebrities Who Never Age

Pharrell WilliamsPharrell Williams. Despite a grueling work schedule, hip-hop artist Pharrell Williams, 42, maintains a positive attitude and youthful look, evidenced by his 2014 hit song, “Happy.” Williams’ spirituality, generosity, and active lifestyle (he’s an avid skateboarder) should keep him looking young for many years to come.