Arrow“s Stephen Amell appeared with co-star John Barrowman (of Doctor Who/Torchwood fame) at a recent fan event, and sent attendees into a frenzy when he gave his co-star a peck on the lips.

Indicating the Vancouver set of Arrow is a barrel of laughs, Barrowman broke out into a performance of “Music of the Night”; from The Phantom of the Opera at the recent Heroes & Villains Fan Fest in New Jersey.

Related: Real-Life Superhero! Stephen Amell Treats Super Fan Family

Following the performance, Amell gives Barrowman a quick kiss on the lips, resulting in a huge roar of applause from the audience.

Later, Amell tweeted: “If I’d known so much good sentiment could be garnered from giving a male friend of mine a peck on the lips, I’d have done it years ago.”;