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Lady Gaga and Sir Paul McCartney. Rihanna and Kate Moss. Wayne Rooney and Olly Murs. They're all in Capital's run down of the best, most unlikely and adorable friendships in the world of showbiz.
Justin Bieber and Niall Horan cooked up a storm in the kitchen after One Direction's three wins at the MTV Video Music Awards in Los Angeles in September. The pair have since traveled to London together to continue being BFFs. Picture Twitter
Rumours began circulating of a relationship between the 'Fly' collaborators after they had been rumoured to be spending a lot of time together. Reports even suggested they were living together - something which Nicki later laughed off.
Ed and Harry Potter actor Rupert Grint joined forces for the star's 'Lego House' video. The hook up came thanks to a favour from actor Tom Felton and Ed told Capital FM that he would be more then happy to play Rupert's stunt double in a future film. Picture: Twitter
Rihanna and Katy posed for several heart warming pictures at the Grammy Awards 2012 and have been friends for some time. It was also said that the 'Part Of Me' singer went to RiRi for a shoulder to cry on when her marriage to Russell Brand ended.
The Wanted bumped into former boxing legend Evander Holyfield during their US tour. The band uploaded this picture on their Twitter account with the message: "Made friends with Evander Holyfield today!"
It was one of the most striking images at the Grammy Awards 2012 when Mother Monster herself puckered up and gave Macca a smacker. Sir Paul McCartney certainly seemed pleased at making a new friend during the bash.
Maroon 5 star Adam Levine and David Beckham are keen followers of their beloved LA Lakers basketball team and often sit next to each other to compare tactics and possibly their tattoo collections.
Always one at the forefront of the fashion world, Rihanna was seen hanging out with model Kate Moss and Stella McCartney during London Fashion Week. Picture: Twitter
The boys from JLS got to hang out and chat with the England football side recently during a charity dinner. After Fabio Capello was sacked as the coach of the team, JLS singer Marvin joked that he thought Oritse should be given the position. Picture: Getty
Two of pop's biggest friends are Girls Aloud star Cheryl Cole and Black Eyed Peas man Will.i.am. Aside from appearing on each others records, Will is also the manager of Cheryl and has been helping the singer with her forthcoming new studio album. Pic: Twitter
The Prince Of Wales and Cheryl were seen engaged to a long conversation when they met at a charity dinner recently. The pair posed for several pictures together and the singer tweeted that she had a lovely time with the Prince saying she "adored" him.
Olly is a massive Manchester United fan and got the chance to play his idol Wayne Rooney at a game of FIFA during a video games tournament. The pair exchanged a few comments on Twitter afterwards with the 'Heart Skips A Beat' singer calling the England star a "top guy". Picture: Twitter
Jessie was all smiles when she got the chance to spend some time in the green room on The Jonathan Ross Show this year. The singer also gave a fantastic rendition of her hit single 'Domino' on the show. Picture: Twitter
The Wanted supported Britney Spears on her Manchester 2011 show and headed down to see their new friend at Wembley on the same jaunt. The artists were all smiles as Britney uploaded this picture to her Twitter account saying they all got to hang backstage and she "loved" the boy band. Picture: Twitter
Tulisa and Mark caused some media outlets to suggest that the pair were dating when this picture emerged online. The pair spent some time with friends during the N-Dubz stars trip to the US and both have strenously denied any relationship has ever existed. Picture: Twitter
In 2010, President Barack Obama invited Justin to perform for him and his family at the Christmas In Washington concert at at the National Building Museum.
Beyonce and Gwyneth Paltrow's friendship could rival that of their husbands. Jay-Z and Chris Martin have toured and recorded together and the ladies are now equally close with Gwyneth one of the first stars to speak to the media following the news of the birth of the singer's baby daughter Blue Ivy.
Ed described his meeting with the legendary singer-songwriter James Taylor as a "very special moment" when they met backstage. Picture: Twitter
Justin and Usher have stayed close friends ever since the 'OMG' star helped discover the teen sensation and signed him to his record label. He even bought the 'Baby' singer a brand new £100,000 electric car for his 18th birthday.
The former X Factor contestants have been good friends for a long time and even had plans to head abroad on New Year's Eve together. Aston recently confessed that he was hoping Olly would hook up with Cheryl Cole after he asked for her number on Twitter.
Perhaps one of the most unlikely pairings in music. N-Dubz star Dappy and Queen guitarist Brian May worked together on the track 'Rockstar'. Dappy told Capitalfm.com that he was "gob smacked" the legendary rocker wanted to work with him. Picture: Goff Photos
Having already collaborated together on the song 'E.T', Kanye and Katy were seen hanging out together during Paris Fashion week. After his collection showing in the French capital Kayne and Katy were both seen go-karting around a track at the rapper's after party. Paris Fashion Week. Picture: Rex
All three artists hooked up together in Los Angeles earlier this year for a "catch up dinner". Flo has worked with the girl group on their track 'Higher', while Tulisa is close friend and was pictured spending a night on the tiles with Vanessa and Rochelle back in January. Picture: Twitter
Tinie and Ellie became good friends after working together on the song 'Wonderman' from the rapper's debut album 'Disc-Overy'. Ellie also credited the star with helping her perform at the Royal Wedding Reception for Prince William and Kate Middleton.
Former President Bill Clinton got a special surprise when he turned 65 after Gaga gave a Marilyn Monroe-esque version of 'Happy Birthday' during a foundation concert. Clinton Foundation
When Olly was still a fresh faced contestant on The X Factor he managed to gain one of his biggest all time fans in Take That star Robbie. The 'Angels' singer helped the show's finalists during a round of the competition saying he wanted the Essex star to be his mate. He even joined Olly for a duet in the live final of the series.
Pineapple Dance Studios star Louis Spence might not look it, but he was over the moon to bump into Pixie in this photo. Louis has spoken about his appreciation of the star and the pair have been seen attending many of the same fashion events. Picture: Twitter
Britney and Madonna took their friendship to another level during the MTV Video Music Awards in 2003 when they were involved in an onstage kiss. The pair have collaborated numerous times live and on record, and there were rumours that Britney was to appear on the Queen of Pop's new album 'MDNA' - although Madge has since denied these claims.
Gym buddies Nicole Scherzinger and Mary J Blige posed for this picture after working out together recently. The pair apparently also share the same trainer.
Jessie helped Tulisa pick her final contestants on the 2011 series of The X Factor. The pair are close friends and are rumoured to have plans to work together in the future.
Justin and Will Smith's son Jayden have been friends for some time with the Karate Kid actor appearing on stage several times with his Canadian pal. The pair even released a collaborative single together to celebrate the ringing in of 2012 called 'Happy New Year'.
After meeting recently, Example and Blur guitarist Graham Coxon have been messaging each other several times on their Twitter accounts. Example tweeted this picture and the message: "Me and the legend that is Graham Coxon" Picture: Twitter
Olly hung out with Britain's Got Talent star Susan Boyle when he performed on his recent UK arena tour. The pair no doubt took some time to speak about their time on their respective reality shows. Picture: Twitter
The boys of the Rizzle Kicks were invited down for a special day at Arsenal's Emirates Stadium recently. Harley joked that he would make a great strike partnership with Robin Van Persie as the two posed for this picture together.