Reading and Leeds Festival 2016 line-up: Biffy Clyro and Fall Out Boy announced as final headliners

They join Foals, Disclosure and The Red Hot Chilli Peppers

Simon Neil of Biffy Clyro performing on the main stage, during day three of the Reading Festival (Getty)

Reading and Leeds festival may be three days long, but the organisers have somehow managed to pack in five headliners.

The final headline slot has been taken by Biffy Clyro and Fallout Boy, who have been announced as co-headliners, with 45 other acts also being added to the bill.

Foals and Disclosure were previously announced as co-headliners with Red Hot Chilli Peppers holding the final slot.

“We're baaaaack!” said Biffy Clyro of their slot, having previously headlined in 2013. “We are honoured to be asked to close Reading and Leeds this summer. We had one of the best nights of our lives last time and we're going to do all we can to make it even bigger and better in 2016. You ain't seen nothing yet motherf*ckers!!”

Fall Out Boy added: "It’s pretty surreal to hear we are going to be co-headlining Reading and Leeds.

Fall Out Boy (Getty)

“R&L was our first real festival experience outside of the U.S. and since the start we have buckled in and had an insane and memorable experience every time we have played. This is it, the big one for us and we are excited to be a part of it."

Joining them will be British rockers The Vaccines, Brits Critics Choice award recipient Jack Garratt, US rockers Haim and indie-electro trio Chvches.

The Wombats, Die Antwoord, Cage the Elephant and A$AP Rocky have also been added to the lengthy line-up.

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The Reading and Leeds line-up so far

All the new additions:

Biffy Clyro (co-headline)

Fall Out Boy (co-headline)

Chvrches

The Vaccines

A$AP Rocky

HAIM

Jack Garratt

The Wombats

Lower Than Atlantis

Asking Alexandria

The Dillinger Escape Plan

Travi$ Scott

G-Eazy

Skindred

Five Finger Death Punch

Sleeping With Sirens

The Neighbourhood

Frank Carter & The Rattlesnakes

StateChamps

Savages

Die Antwoord

Cage The Elephant

Krept & Konan

Sigma

Half Moon Run

Basement

Blossoms

Mura Masa

Giggs

Netsky

Highly Suspect

Sundara Karma

AlunaGeorge

David Rodigan MBE

Disciples

My Nu Leng B2B Oneman + Dread MC

MistaJam

Philip George

Riton

Birdy Nam Nam

Wakrat

The King Blues

Kvelertak

FVK

Modern Baseball

Dead!

Creeper

Citizen

Maxïmo Park

Raleigh Ritchie

INHEAVEN

Banners

Tuff Love

Seratones

Anderson .Paak & The Free Nationals

Section Boyz

Protoje

Lady Leshurr

DJ Semtex

Yungen

Jauz