The country star and nu metal icon performed The Who's "Behind Blue Eyes" at Rockville Festival ... On Friday, May 10, Limp Bizkit performed a headlining set at Rockville Festival in Daytona ...

They used to do it all for the nookie, but now Limp Bizkit are all about the love ... for a duet on their cover of The Who’s Behind Blue Eyes (a collab Fred dubbed ‘Fred Sheeran’ on Instagram).