The sun's shining, which can only mean one thing - festival season is just around the corner. So if you're still trying to decide where you want to pitch a tent this summer, click through this gallery for a round-up of the key 2011 festival acts. T In The Park (July 8-10) sold out in less than one hour, but if you were lucky enough to score a ticket, you'll have a chance to see Arctic Monkeys.
T In The Park organiser Geoff Ellis says, "We are proud to bring one of the world's biggest and most influential rock bands to Balado. As well as being a personal favourite and a band that T in the Park fans continually praise, Foo Fighters are one of the best festival headliners on the planet and I'm delighted we have them for T in the Park 2011."
Coldplay will also be headlining at Scotland's T In The Park this July. The band will be joined at the festival by other acts including Pulp, Tom Jones, My Chemical Romance, Plan B, Pendulum, Weezer, Beady Eye, Jessie J and Blondie.
Kings Of Leon will be headlining Friday's Main Stage at the 2011 Isle Of Wight Festival (June 10-12), along with The Courteeners, Band Of Horses and We Are Scientists.
Following a Saturday night headline slot from Foo Fighters, Kasabian will be running the Main Stage at the Isle Of Wight Festival on Sunday, along with Beady Eye, The Script, Plan B, Pixie Lott, Two Door Cinema Club, James Walsh and special guest Jeff Beck.
U2's The Edge confirmed his band's headline slot at Glastonbury 2011 (June 22-26) in his special video message for Michael Eavis at the Shockwaves NME Awards 2011, in honour of Glastonbury winning the Best Festival Award.
"Coldplay have played such a major part in the festival over the last 10 years or so," said Michael Eavis. "This is the triumphant return of a band that everyone here feels part of. They're one of the greatest phenomena to grow from these fields." Click here to watch our video interview with Eavis at the Shockwaves NME Awards 2011.
If rock isn't your thing, don't fret. You can dance along with Beyoncé during her Sunday headline slot at Glastonbury 2011. There are also rumours that The Libertines might be performing at this year's Glastonbury.
From July 1st-2nd, Hop Farm Festival will be taking over Kent. Morrissey will be headlining the Saturday, sharing the day's slots with Iggy & The Stooges, Brother, Gang Of Four and Noisettes.
Lou Reed will also be performing on the main stage at Hop Farm Festival on Saturday. The people at Hop Farm have put together a lovely Spotify playlist of all the acts appearing at this year's festival.
Going to Hop Farm Festival this summer? Patti Smith, Eagles, Bryan Ferry, Brandon Flowers, Death Cab For Cutie, The Human League, The Walkmen and heaps of other acts will be there. Click here to purchase tickets.
Download (June 10-12) is the summertime festival all rock fans need to attend. Def Leppard are one of the headline acts at the Donington Park event this June.
You can also catch System Of A Down at this summer's Download Festival. Click here to get your tickets to the three-day event.
"We are very excited to be playing Download again,” Linkin Park frontman Chester Bennington said. “It's one of the best festivals in the world and it's always an honour to play in front of such a great crowd. We can't wait!"
Avenged Sevenfold will be returning to Download in 2011, following two previous appearances at the festival in 2006 and 2008.
Radio 1 DJ/ Bestival organiser Rob da Bank accidentally announced on Twitter that Public Enemy will be performing at the Isle Of Wight event (September 8-11).
The Cure will be headlining Bestival this summer. Don't want to miss Robert Smith? Click here to purchase tickets before they're all gone.
Going to Bestival? Don't forget your fancy dress! Rob da Bank says, "Dressing up and escapism has always been a big part of Bestival and our faithful crew are mega inventive to the point of eccentricity! This year’s theme of Rock Stars, Pop Stars and Divas should give everyone enough ideas to really let rip with some outrageous, weird and downright flamboyant outfits. There are no excuses!"
Last year, Bestival featured a band playing music on vegetables. This year, the Ukulele Orchestra of Great Britain will be performing. Leave it to Bestival to have the most unique musical acts.
Black Eyed Peas will be headlining Friday of Wireless Festival (July 1-3) at London's Hyde Park. Bruno Mars, David Guetta, Far East Movement, Labrinth, Wretch 32 and Yasmin will also be performing that day.
You can catch The Chemical Brothers, The Streets, Katy B, Chase & Status, Janelle Monae and Devlin on Saturday 2nd July at Wireless Festival. Click here for tickets.
The original line-up of Pulp will be reuniting for a headline slot at Wireless Festival. Foals, The Horrors, TV On The Radio and Metronomy are also on the bill for that day.
V Festival (August 20-21) is already sold out. But if you'll be heading to Weston Park or Hylands Park, you can check out Eminem's live performance.
Rihanna will also be performing at V Festival 2011. Tickets sold out in a record 1 hour and 20 minutes this year.
Last year, Plan B covered Eminem, Paolo Nutini and Seal during his V Festival set. He'll be back at the event this year - so stay tuned to see what he's got up his sleeves.
You can also Bruno Mars at this year's V Festival. Click here for a full line-up and more details on the festival.
Though it's only going onto its third year, the traveling rock festival called Sonisphere has been attracting some big acts. This year, Biffy Clyro will be headlining. Sonisphere will hit Knebworth, England from July 8-10.
Want to see Metallica this summer? Click here to get your tickets to Sonisphere 2011.
Slipknot say of their upcoming Sonisphere appearance: “We’re looking forward to spending our summer in Europe. This tour is about us and our fans. It’s about celebrating the life of our brother, Paul and his legacy. The door is neither open nor closed. This tour is about burning down that door. See you this summer.”
Want to hear The Strokes perform their new material live? Head to Benicassim Festival 2011 (aka Festival Internacional de Benicàssim), a four-day music festival in sunny Spain (July 14-17).
Click here to buy tickets to Benicassim Festival, where Primal Scream will be headlining on Saturday 16th July.
Catch Portishead and Grammy-winning band Arcade Fire on Sunday Sunday 17th July at Benicassim Festival.
Going to Oxegen (July 7-10), Ireland's biggest music festival? Blink 182, Foo Fighters, Arctic Monkeys, Paolo Nutini and The Black Eyed Peas will all be there. Click here to buy tickets.
On August 6th, London's Victoria Park will be buzzing with Field Day activities. Jamie Woon, Ariel Pink, Gruff Rhys, The Horrors and Wild Beasts will provide music, while you can participate in a sack race or tug of war...or just drink and get a tan.
Snoop Dogg will be playing 'Doggystyle Live' at Lovebox 2011 (July 15-17), along with Scissor Sisters, Beardyman, Robyn, Kelis and Lykke Li. Click here for a full line-up and ticket details.
Brighton's Great Escape Festival (May 12-14) will feature DJ Shadow, The Joy Formidable, The Vaccines, Mona, Spark and other great acts.
Want to see Sufjan Stevens? Get your Great Escape tickets now.
Do you think he's sexy? Head to this summer's Hard Rock Calling (June 24-26) to see Rod Stewart headline the event which he says, “Sounds like a perfect night - the people, the place - and I intend to do my part to bring a whole lot of music and more than a few surprises to Hard Rock Calling.”
Latitude Festival (July 15–17) just revealed the line-up for 2011, including headline acts Suede, The National and Paolo Nutini. This will be Suede's first scheduled UK festival slot since they reformed last year. It is also set to be The National's first headline slot at a major UK festival.
Watch a video interview with Latitude Festival Organiser Melvin Benn, as he discusses the bands he's booked for the festival this year and why, including Suede, Paolo Nutini, Chapel Club, Anna Calvi and Hurts. He also talks about some new plans for the site grounds themselves.
Click here to book your tickets to the festival in Suffolk's Henham Park.