I know I will take some stick for this, but my three favourite gigs of all time are:
1. Def Leppard - 3 continents in one day gig, The Bottom Line Club, Shepherds Bush, London, October 1995. The band made it into the Guinness Book of Records for the fastest ever world tour (a record that still stands to this day I believe.)
2. Def Leppard - Tower Records store, Piccadilly, London, November 1996. An exclusive fan club members only gig.
3. Def Leppard - Songs From The Sparkle Lounge album launch party/gig, Islington Academy, Islington, London, May 2008. Without knowing I was captured cheering on their first ever live album entitled Mirror Ball - Live & More.
Note: The gig they played in London last December with Motley Crue was probably the best sounding concert I have ever attended.