The Vampire Diaries stars arrived hand-in-hand at last night's ceremony in Toronto and posed for photographs before the show got under way.
A reporter questioned Somerhalder as to which celebrities he was most looking forward to meeting at the event, to which he replied: "Who am I most excited to see tonight? Nina Dobrev!"
The couple have remained coy about their romantic involvement since being spotted together in Paris in late May.
Dobrev, who first achieved fame on the Canadian drama series Degrassi, recently admitted that The Vampire Diaries is indebted to Twilight for reviving interest in the supernatural.
The Vampire Diaries returns for a third season in the fall on The CW.
Watch footage of Ian Somerhalder and Nina Dobrev's MuchMusic Video Awards entrance below: