Tickets for concerts by Take That and Led Zeppelin were the most in demand on internet auction sites last year, according to research firm Tixdaq.
Take That generated £12.8m in online resales, Tixdaq said
"Second-hand" Take That tickets generated £12.8m in online sales across the UK's 25 biggest sites, it said.
Led Zeppelin's gig at London's O2, meanwhile, produced the highest average ticket price at £707.97 despite measures to prevent resale, it added.
Tixdaq monitors secondary ticket sales on the websites.
MOST EXPENSIVE RESOLD TICKETS
Led Zeppelin - £707.97
Electric Proms: Paul McCartney - £498.14
Electric Picnic - £360.96
The Liverpool Sound - Paul McCartney - £330.00
Liza Minnelli - £261.93
Tickets for Paul McCartney's gig at the BBC Electric Proms were the second most expensive at an average of £498.14 per ticket, while third were tickets for Ireland's Electric Picnic festival, fetching an average of £360.96 each.
Tixdaq spokesman Will Muirhead said secondary ticket exchanges had created a huge new market in the last couple of years.
"No wonder artists are concerned that they do not generally share in the proceeds," he added.
In January, a committee of MPs said that artists and sports bodies should share profits from tickets resold on internet auction sites.
BIGGEST GROSSING EVENTS
Take That - £12.9m
T in the Park - £8.7m
V Festival - £6.8m
Spice Girls - £5.3m
Reading Festival - £5m
In a report on touting, they stopped short of calling for a ban, but said online touts must "clean up their act" because they exploit fans.
The Culture, Media and Sport select committee said up to 40% of tickets were being sold on the internet.
The Resale Rights Society (RRS) - representing the managers of the Arctic Monkeys, Radiohead and Robbie Williams and more than 400 other acts - is lobbying for a levy to be added to resold tickets.
It says that the existing situation - where big profits can be made by ticket sellers with nothing going to the organisers or rights owners - was "unfair and must be addressed".