Who are the best and worst festival headline replacements ever?

So with 27 days left until the festival kicks off, the consensus is that Gorillaz seem to be a decent enough substitute for U2 who have had to cancel their headline show. But who are the best and worse headline replacements ever?

Do Pulp stick in your mind after they rocked the Pyramid Stage in 1995 following the cancellation of the Stone Roses? Were you gutted when Travis closed the main stage at the Isle Of Wight Festival 2005 instead of Morrissey?

We want to know your favourite and your most forgettable shows headline replacement shows at festivals.

Leave yours in the comment box below.