“Blue dot thing” in concerts usually means the blue dots you see on a ticket map for unsold seats. On Ticketmaster and similar sites, those blue dots mark the seats still available, and people online have started calling a wave of lots of empty blue dots “blue dot fever.”

What it means

  • Blue dots = seats that haven’t sold yet.
  • The phrase is a slang term, not an official industry term.
  • It’s often used to describe concerts that are struggling to sell enough tickets, which can lead to cancellations or scaled-back tours.

Why people talk about it

  • Fans say high ticket prices are making them more selective about which shows they buy.
  • It’s been discussed a lot in recent coverage because some artists have canceled or adjusted tours amid weaker demand.
  • Some industry voices dispute the idea as a broad “problem,” so there’s debate about how real or widespread it is.

Simple example

If you open a venue seating chart and see lots of blue dots everywhere, that means many seats are still available. If that happens close to the show date, people may say the tour has “blue dot fever.”

TL;DR

It’s just internet slang for lots of unsold concert seats shown as blue dots on the ticket map, often used when a show or tour is underperforming in sales.