Festival Republic's Melvin Benn said: "Reading and Leeds prides itself on being a music-first festival and this year's line-up already proves that.
"Kings Of Leon and Fall Out Boy are bands that have grown with the festival and its fans and we couldn't be more pleased to invite them back to headline.
"Adding Panic! At The Disco and Kendrick Lamar, probably the most sought-after act in the world right now, we think Reading and Leeds festivals 2018 are off to an amazing start - with even more to come, so watch this space."
Reading and Leeds takes place at Reading's Richfield Avenue and Leeds's Brahman Park from August 24-26.
Source : http://www.itv.com/news/2018-02-13/rock-fans-brand-reading-and-leeds-line-up-underwhelming-as-kendrick-lamar-announced-as-headliner/