So Solid Crew's Neutrino was shot in May
The title of the single refers to the amount of time each of the 23 artists, which include Oxide and Neutrino, contributes to the track.
Click here to listen to a clip of 21 seconds
Neutrino, who, along with Oxide, had a number one in May 2000 with Bound 4 Da Reload, hit the headlines earlier this year when he was shot in the leg outside a London nightclub.
Pop trio Atomic Kitten have fallen to number two after spending two weeks at the top with their cover of the Bangles tune Eternal Flame.
But the girls need not worry about losing the singles crown as their new album Right Now has gone straight to the top of the album chart.
Actress and singer Jennifer Lopez landed the second highest new entry with her new song Ain't it Funny.
The third highest chart entry is Ante Up by MOP featuring Busta Rhymes at number seven.
Other new entries include Missy Elliot with One Minute Man at number 10 and Raven Maize with The Real Life at number 12.
Radiohead's Knives Out, taken from their Mercury-nominated album Amnesiac, entered at number 13.
INXS
The late Michael Hutchence is once more in the charts, nearly four years after his mysterious death.
DJ Tall Paul has remixed the INXS's Precious Heart track, which after a great deal of radio play entered at number 14.
David Gray has slipped off the top of the album charts to number two with White Ladder, but still continues to sell well an incredible 67 weeks after its release.
Prince, who has reverted to his original stage name, is at number three with his best of compilation.
Other new entries in the top 10 include Catatonia's Paper Scissors Stone at number six and American boyband O-Town's eponymous album at number seven.