2007 Rumours
At this stage it's too early to confirm anything so they are all still down as rumours - nearer to the time they will be separated into confirmations, strong rumours and maybes!
Kasabian - according to several people who heard them say it at a Manchester gig
John Fogerty - mentioned for the Jazz stage by Michael Eavis on Radio 5
Razorlight - according to Virgin Radio
The Who - a strong rumour in many places but nothing concrete yet
Genesis - a rumour, since they are reforming and Michael Eavis has alluded to the reunion of a supergroup
Scissor Sisters - someone who spoke to Jake Shears claims the only issue is which stage they will be on
Officially Denied
Kylie - according to this BBC News story