Justin Bieber and Sofia Richie Together & Japan Justin Bieber’s latest companion is a 17-year-old music legacy. The pop star and Sofia Richie, the daughter of iconic crooner Lionel Richie and his ex-wife Diana, have spent five days straight together, a source tells PEOPLE. Bieber and Richie who will celebrate her 18th birthday later this month hung out in Laguna Beach and the singer’s Toluca Lake house on Wednesday, going on a hike before jetting off to Japan, the insider says, where Bieber, 22, has two Purpose World Tour shows this weekend.