• ROCKING OUT photo | Justin Timberlake

Credit: Rui M. Leal/PRPhotos

Published: Tuesday June 03, 2014 06:00 AM EDT

2014

ROCKING OUT

Justin Timberlake strums a tune at the Rock in Rio Lisboa music festival in Lisbon, Portugal, on Sunday. "Thank you all for coming out and singing your asses off! Amazing festival run," he Tweeted after the show.