Goulding was romantically linked to the 22-year-old War House actor after the pair were spotted kissing outside an exclusive eatery in the capital last month.
The 26-year-old 'I Know You Care' singer recently split up from dubstep producer Skrillex after eight months due to the strain of a long-distance relationship.
The couple were joined at the Barcadi-hosted bash by Jake Bugg and Frank Ocean, who picked up 'Best International Male' at the ceremony, Taylor Swift and Brits host James Corden, and newlyweds Dawn Porter and Bridesmaids actor Chris O'Dowd.
Watch Digital Spy talk to stars of the Brit Awards 2013 below:
2013 Brit Awards - Red carpet arrivals: