Lindsay Lohan finally ended her feud with love rival Ashlee Simpson during a Coldplay concert.

The teen stars have been embroiled in a bitter fight since Lohan accused Simpson of "stealing" her boyfriend Wilmer Valderrama last year.

But the pair agreed to put their differences aside after spending quality time together backstage at the Clocks hitmakers' gig in Irvine, California.

Lohan's spokesperson adds, "They never really had such issues - it's all rumors."