Burns knows he can do a good 20-minute club set but it's not a prospect that excites him any more. So he tries to play as many festivals as he can. Here he can delve more freely into the two hours-plus of material he writes every year. He recently made a successful debut at the Melbourne Comedy Festival.
The comic's a regular at Glastonbury. But this year's set took a dramatic U-turn at the last minute. The show's second half was due to focus on his upcoming marriage.
But a couple of days before the festival, the relationship ended. 'Glastonbury was emotional, let's call it that,' Burns says. 'Comics say it's therapeutic, when you're in pain, to be performing but it's not when the spotlight is searing through your eyes and people are laughing...
'I did the new show for the first time a month ago. At the end, I asked if there were any questions and a guy said: "Have you been to see a psychiatrist?" which I had to find funny. But I don't want to hurt people any more.
At Edinburgh, you get respect for being dark. What's so good about being dark? Why can't you do stuff that's positive? I'm hoping I can pull it off. I think I will.'
Thu to Sat, Jul 22 and 23, Soho Theatre And Writers Centre, 21 Dean Street W1, 9.30pm, £15, £12.50 concs. Tel: 020 7478 0100. www.sohotheatre.com Tube: Tottenham Court Road/Piccadilly Circus