His loose and confident lines and ingenious compositions make other pulp novel illustrations look flat and awkward.

FORBES: Schwarzenegger's Sargent

Study leader Prof Paul Sharpe said mesenchyme cells could be found in the pulp of wisdom teeth, among other sources, but the difficulty had been in getting hold of enough of them.

BBC: Researchers grow teeth from gum cells

Other big names taking to the stage on Sunday included Blondie, My Chemical Romance, Pulp and Scottish talents Calvin Harris and KT Tunstall.

BBC: T in the Park: Foo Fighters bring festival to a close