Cleared: R&B superstar R. Kelly has been cleared of all 14 child pornography charges in Chicago

R&B superstar R. Kelly was acquitted of all charges yesterday after less than 24 hours of deliberations in his child pornography trial.

Kelly dried his eyes with a handkerchief and hugged each of his four lawyers after the verdict - not guilty on all 14 counts - was read, ending a six-year ordeal for the Grammy award-winning singer.

He faced 15 years in prison if convicted.

Minutes later, surrounded by bodyguards, he left the Chicago courthouse without comment.

Dozens of fans screamed and cheered as he climbed into a waiting vehicle.

'All I heard (from Kelly) while those 14 verdicts were being read was "Thank you, Jesus. Thank you, Jesus. Thank you, Jesus,"' said Sam Adam Jr, one of his lawyers.

Prosecutors had argued that a video sent to the Chicago Sun-Times in 2002 showed Kelly engaged in graphic sex acts with a girl as young as 13 at the time.

Both Kelly, 41, and the now 23-year-old alleged victim had denied they were the ones on the video. Neither testified during the trial.

A statement from his publicist, Allen Mayor, said: 'Robert said all along that he believed in our system and he believed in God - and that when all the facts came out in court, he would be cleared of these terrible charges.'

'But he never dreamt it would take six and a half years.

'This has been a terrible ordeal for him and his family and at this point all he wants to do is move forward and put it behind him.'

The prosecution's star witness was a woman who said she engaged in three-way sex with Kelly and the alleged victim.

Defence lawyers argued the man on the tape did not have a large mole on his back, which Kelly does.

The month-long trial centred on whether Kelly was the man who appeared on a sexually graphic, 27-minute videotape at the heart of the case, and whether a female who also appears on it was underage.

Over seven days presenting their case, prosecutors called 22 witnesses, including several childhood friends of the alleged victim and four of her relatives who identified her as the female on the video.

In just two days, Kelly's lawyers called 12 witnesses. They included three relatives of the alleged victim who testified they did not recognize her as the female on the tape.

Assistant Cook County State's Attorney Shauna Boliker said she believed the female on the tape was a victim, not a prostitute as the defence had contended.

'This shows the world how difficult this crime is to prosecute,' she said.

'It also takes the soul of the victim, the heart of the victim.'

Jurors said the fact that neither the alleged victim nor her parents testified weakened the prosecution.

One juror said he just was not sure the female was who prosecutors said she was - or that she was a minor when the tape was made.

Another said that while he was convinced it was Kelly on the tape, he had doubts about the female.

'What we had wasn't enough,' said the juror, who declined to give his name.

Kelly won a Grammy in 1997 for 'I Believe I Can Fly,' and is known for such raunchy hits as 'Bump N' Grind', 'Ignition' and for 'Trapped in the Closet', a multi-part saga about the sexual secrets of an ever-expanding cast of characters.

Of the 12 jurors, nine were men and three were women; eight were white and four were black.

Despite his legal troubles, Kelly - who rose from poverty on Chicago's South Side to become a star singer, songwriter and producer - still retains a huge following, and his popularity has arguably grown in recent years.

The singer has released more than half a dozen albums, most of them selling over a million copies.

He has also had several hits and gone on tours.

Kelly has a new song, 'Hair Braider', out now and is due to release a new album in July.

Kelly, always meticulously dressed in a suit and tie, seemed particularly ill at ease when prosecutors played the sex tape in open court after opening arguments.

In the video, a man has sex with a young female, who is naked for most of the recording.

The man speaks to her in a hushed voice, and she calls him 'daddy'.

In one scene, alluded to in one count of the indictment, the man urinates on the female.

The issue of whether there was or wasn't a fingernail-sized mole on the man's lower was a subject of hours of testimony.

A defence witness told jurors there was no mole on his back, proving it was not Kelly, who has such a mole.

But a prosecution witness displayed freeze frames of the video where a dark spot seemed to appear as the man turns to take off his trousers.

Cross examination was often heated, with several witnesses crying on the stand.

The star prosecution witness, Lisa Van Allen, became teary eyed as she told jurors she engaged in several three-way sexual encounters with Kelly and the alleged victim, including once on a basketball court.

Kelly videotaped the trysts, she said.

Van Allen also claimed Kelly used to carry a duffel bag stuffed full of his homemade sex tapes.

The defence called several witnesses in a bid to discredit Van Allen, accusing her of trying to extort money from Kelly.

Under cross-examination, Van Allen admitted she once stole Kelly's $20,000 diamond-studded watch from a hotel.