The start of it all: The world first caught a glimpse of the pair's newfound romance during their romantic Italian vacation back in June 2015, and three months later, the duo made their red carpet debut as a couple at the NYC premiere of The Intern.
The engagement: In January, news broke that James had popped the question, and the following month, Mariah opened up about the proposal, telling E!, "I'm feeling fantastic, better than ever. He's an exceptional person, and really . . . it gets more romantic by the day, so it's very sweet. [It was] very romantic."