June 10 2011 - The Download festival in Donington kicked off with a headline performance from Def Leppard.
Day one of the festival, which takes place over three days, also saw a comeback performance from The Darkness on the main stage, as well as set from Korn and Alter Bridge.
Pendulum headlined the second stage, while other performances came from Children Of Bodem, Alter Bridge and Bring Me The Horizon.
You can see photos from all those and more below.
For more information about Download and all this summer’s festivals, check out the Gigwise Festival Guide.
Exclusive shots from one of of year's first festivals
Proof that teen stars aren't all like One Direction - the future kings and queens of UK music
Zip-wire fails, lonely drunk men, whiskey-glugging party goers and violent mosh-pits
Next year's Download taking place 13-15 June