That I can remember off the top of my head

Music:

• Black Stone Cherry
• Blue (about 3 times I think)
• Bon Jovi
• Boyzone (my first ever concert! Sometime in the 90s, I'd guess about '95)
• Chris Rea
• Deep Purple
• Def Leppard
• East 17
• Fall Out Boy
• The Feeling
• HIM (2x)
• Jason Manns (2 or three times I think)
• Jeff Fiorello (2x)
• John Barrowman
• Jonas Brothers
• Kane
• Keith Urban
• The Life of Riley
• Metro Station
• Nickelback (2x)
• Ozzy Osbourne
• Panic! at the Disco (2x before the split)
• Queensryche
• Russell Watson (2x)
• Steps (I think twice, possibly three times)
• Steve Carlson (twice I think? Plus once with Kane)
• Sugababes
• We Are Scientists
• Westlife
• Whitesnake

Shows:

• Dancing on Ice Live Tour 2007
• Gladiators (original, sometime early '90s)
• Guys & Dolls
• Mighty Boosh Live Tour
• Panto's (various over the years)
• The Producers
• Wicked (3x)

Other:

• Dara O'Briain
• Dylan Moran
• Ennio Marchetto
• John Bishop
• Lee Mack
• Lenny Henry