The couple certainly looked very much together as they posed for cameras at the Staples Centre in Los Angeles on Sunday evening (26 January).
Earlier this month, they were faced with break up speculation when eagle-eyed fans noted Rita had stopped following Calvin on Instagram.
Sources claimed the couple's hectic jetsetting schedules had also put pressure on their romance. They began dating in 2013 and had been seen enjoying dates all across the world.
However, either the rumours were wrong or their split was just a bump in the road, as there's no denying they looked every inch the happy couple at the Grammys.
Ahead of the star-studded ceremony, the pair had been seen at a juice bar in Los Angeles, and Calvin was also reported to have flown up to Vancouver to visit Rita on the set of her new movie, Fifty Shades of Grey, where she'll make her feature film debut playing Christian Grey's sister Mia.
As well as attending the Grammys together, Rita and Calvin were also snapped at a pre-Grammys brunch thrown by Rita's record label Roc Nation.
More gorgeous outfits from the Grammys red carpet below:
Copyright: WENN Adriana M. Barraza