On Thursday night a representative for the couple confirmed the news. Rivera showed off her giant engagement ring at Latina Magazine's Hollywood Hot List Party at the Redbury Hotel in Hollywood.
The duo went public with their romance in April at the "42" movie premiere.
Rivera previously opened up about the couple's first meeting, saying: "I had followed him and then he sent me a little message that was like, 'I'm a fan, keep up the good work'... He was overseas on tour and so I had to wait two and a half weeks but then we went for dinner and the rest is history."
Naya at the Hollywood Hot List Party on Thursday night: