Grammys 2015: Behind-the-scenes photos from the star guests and performers

The Grammys 2015 was a star-studded affair with a whole host of famous faces taking to the stage to perform or supporting their celebrity pals from the audience. And where better to take a look inside music's biggest night than Instagram?

From sneak peeks backstage and inside dressing rooms to exclusive performance shots and silly selfies, the social media site was flooded with fun pictures from clebrities documenting their night out at the Grammy Awards this year.



Man of the moment, four-time Grammy winner Sam Smith posted an adorable photo of himself getting a congratulatory kiss from Rihanna while Beyoncé Knowles shared a candid shot, posing with her wins from the night.

Cute couple Ariana Grande and Big Sean delighted fans with a romantic snap and Neil Patrick Harris posed with husband David Burtka en route to venue, the Staples Centre. The star is gearing up to host the Oscars later this month.

Click the photo above to see the best celebrity Instagram moments from the Grammys 2015.