It may seem like quite a change for the 43-year-old Oscar winner, but he's done it before. He was recently spotted with a 23-year-old brunette model Lorena Rae... before settling back into his old ways with 19-year-old blonde model Juliette Perkins.
The Daily Mail caught Morrone, originally from Argentina, sneaking out of Leo DiCaprio's home in Los Angeles on Saturday morning. The Cut speculates that they met at this year's Art Basel, where Morrone was a guest of honor at a Daily Front Row party that DiCaprio attended.
Our best wishes to the new couple, even if DiCaprio's dating habits are notoriously fickle.
See more of Camila Morrone with her hottest Instagram shots, here: