I love going to gigs but most have been in the last ten years. In no particular order, I've seen:
Simple Minds (3 times)
Texas (twice)
Manic Street Preachers (5 times)
Take That (twice)
Jason Donovan
Keane
Wednesday 13 (twice)
Paul McCartney
Kaiser Chiefs (4 times)
Duran Duran (twice)
The Fratellis (twice)
My Chemical Romance
Kasabian (3 times)
Arctic Monkeys
Oasis
Airbourne (twice)
Heaven's Basement (3 times)
Olivia Newton John
Muse
Elton John
Girls Aloud
Ugly Kid Joe
Skid Row
Kylie Minogue
Level 42
Human League
Bryan Adams
Royal Blood
Frankie Valli
Brotherhood of Man

Currently enjoying seeing tribute bands - great night out for a fraction of the price.
I've seen Bjorn Again loads and if there was one gig I'd go to regardless of the price, it would be to see ABBA.