Say Yes — But Negotiate First
This is a genuine opportunity. A bigger audience, more stage time, and a promoter who now owes you a favour. Say yes — but don't say yes without a quick negotiation. The promoter is in a bind and needs you. That's leverage. Use it.
What to Ask For
Before you agree, ask for: an increased fee (you're saving their night — they know it), a longer set time appropriate to a headline slot, top billing on all remaining promotional materials for the show, and a social media shoutout from the promoter acknowledging your promotion. You won't get all of these, but you'll get some. The promoter would rather give you a few things than scramble for another act.
Extending Your Set
If you've been playing 30-minute support sets, you probably need to fill 60–90 minutes. Go through your catalogue honestly: which songs are strong enough to hold a headline slot? Add extended versions of your strongest tracks, be honest about where the gaps are, and don't pad with weak material. A tight 50-minute set is better than a padded 80-minute one. Talk to your soundperson about how the longer set changes the technical setup.
The Promotion Problem
With almost no time, focus your promotion on: an immediate social media post announcing the upgrade (framed positively — 'excited to announce we're headlining...'), messaging your own mailing list if you have one, and asking the venue to update their door listings and social media. The promoter should be doing this too — make sure they are.
On the Night: Raise Your Game
A bigger stage and a crowd who came to see someone else is a different energy. Play to the room. Engage the audience more than usual. Don't assume they know your songs — brief introductions help. End on your absolute best track. This is an audition for your headline potential and people will remember how you performed, not that you were a last-minute replacement.