Mumford and Sons: In 2010, Mumford & Sons played on the BBC Radio 1/NME stage to an incredibly receptive crowd. Five years on, and having not played in the UK in two years, many critics seem to have forgotten the sheer, raucous power and energy Mumford and Sons possess when performing live. Their headline set at Reading & Leeds will give people the not-so-gentle reminder they need.
Royal Blood: The 2014 festival season belonged, unequivocably, to Royal Blood. One minute they were an unknown duo from Brighton, and the next, people were clambering to try and get a view of their set from outside packed tents across Europe. This year, they'll surely be on bigger and better stages, and those that missed out will get to witness why Royal Blood are so special. If you want to see them in the UK though, R L is your only shot - it's the band's only UK festival of the year.
Chase & Status: With its reputation as a rock festival for guitar bands, Reading & Leeds perhaps isn't Chase & Status' natural habitat. But with a back-catalogue as strong and varied as Chase & Status', that hardly matters. You might be sceptical at first, but the minute 'Blind Faith' starts playing, you'll be powerless to resist.
Catfish & The Bottlemen: The band won the Introducing Award at the inaugural BBC Music Awards at the end of last year, and the band used their performance slot alongside some formidably huge names to prove why they deserved it. Catch their 2015 festival sets to see for yourself.
Years & Years: Another BBC-lauded band, Years & Years recently topped the prestigious BBC Sound of 2015 list. Their R&B-laced electronica is clean, ambitious and infectious, and translates brilliantly in front of a live audience.
Jack Garratt: We witnessed the talents of this singer and multi-instrumentalist (and we really mean multi) at this year's European Festival Awards. His incredible, assured performance no doubt caught the attention of the countless festival bosses in the room, and you can expect to see his name on many a festival bill this summer. (Photo: Rob Ball)
Metallica: The sceptical shouts were reduced to whispers last year when Glastonbury silenced the critics with a mighty Glastonbury set. Having proved themselves, the pressure's off for Reading and Leeds... to an extent. The next test is whether they can top Glasto, and it's surely a challenge they'll rise to.
Jamie T: His much-anticipated third album, Carry On The Grudge, was released slightly too late for 2014 festival crowds to be able to sing along. With brilliant songs such as 'Zombie', 'Rabbit Hole' and 'Don't You Find' undoubtedly memorised by Jamie T fans the country over by now, 2015 will be the year his new material really makes an impact at festivals.
Run The Jewels: Their 2014 album RTJ2 made it onto many albums of the year lists - ours included. Expect them to make a massive impact this year when they take the album to festivals across the world, Reading and Leeds included.