You've heard of the stellar likes of Them Crooked Vultures, The Traveling Wilburys, Cream and Crosby, Stills, Nash & Young - supergroups that really lived up to their billing, and made a go of it too - but every now and then there's a tantalising combo that lives fast and dies young, staying together for just that one performance. Here are 10 of the most spine-tinglingly brilliant one-off supergroups, with perhaps a flaky one or two thrown in for good measure.
In 1992, two decades after their duet in Philadelphia, David Bowie and Ian Hunter performed 'All The Young Dudes' alongside the surviving members of Queen, Mick Ronson and (if that wasn't enough) Def Leppard's Joe Elliot and Phil Collen. The mother of all supergroups performed together at the Freddie Mercury Tribute Concert.
The National played a version of 'Afraid Of Everyone' at the Radio City Music Hall with a twist, as Sufjan Stevens and St. Vincent mucked in on guest vocals. Lovely.
This unlikely - and possibly quite volatile - quartet took to the stage at the 2010 Grammys in LA. The ferociously energetic supergroup performed Lil Wayne and Eminem's 'Drop The World'.
The 2011 Grammys saw this spectacular combination perform together. The Mumfords kicked off the set with a rendition of 'The Cave,' prior to The Avett Brothers gracing the stage with 'Head Full Of Doubt.' Cue the formidable Bob Dylan who performed 'Bringing It All Back Home' as part of the three-act tribute to acoustic.
At the Paralympics closing ceremony in 2012, Rihanna duetted with Coldplay on their hit 'Princess Of China', but it was just a prelude for 'Run This Town' - her collaboration with Jay Z. Coldplay stuck around for this one, minting an unlikely supergroup, before Jay Z added some rap pizzazz to their 'Paradise'.
Yep, Rihanna again. Who can forget her performance with Klaxons at the 2008 Brit Awards as the Mercury winners mashed up their 'Golden Skans' with RiRi's global smash 'Umbrella'? An audacious gambit that just about paid off.
Will Smith and his actor son Jaden delighted guests on The Graham Norton Show with a version of the Fresh Prince Of Bel Air theme tune. If that wasn't enough 90s nostalgia for you, DJ Jazzy Jeff and Alfonso Ribeiro also took to the stage to perform a rendition of 'Jump On It,' with Norton awkwardly twerking alongside them.
The VMAs in 2003 are remembered more for Madonna locking lips with Britney Spears and Christina Aguilera than for the performance itself. After a 'Like a Virgin' cover from Britney and Christina, Madge appeared for a joint performance of 'Hollywood', with Missy Elliott thrown in too.
Entering on a red carpet, a scantily clad Kid Rock revealed himself at the 1993 VMAs before breaking out into his hit 'Bawitdaba' with Run-D.M.C. Aerosmith then took to the stage, and the three acts performed 'Walk This Way'.
The Boss and his trusty sidekicks collaborated with Rage Against The Machine's Tom Morello for a unique version of 'The Ghost Of Tom Joad'. The supergroup performed together at the 25th Anniversary of The Rock And Roll Hall Of Fame Concert in 2009.