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On-off couple Kate Moss and Pete Doherty back together again on Babyshambles' show in Ireland

On-off couple Pete Doherty and Kate Moss were back together this week, traveling in Ireland where Doherty's band is on tour.

Witnesses said the 32-year-old supermodel took the stage Monday night at a nightclub south of Dublin and sang alongside Doherty at the start of Babyshambles' new tour.

"They came in the front door and chatted with the fans. Kate got up onstage at a few points and helped sing the chorus of a few songs. They both appeared to be in fine form," said Damien O'Brien, manager of the Music Factory in the town of Carlow, where the show attracted about 680 fans.

Doherty, 27, skirted a jail sentence on drug charges earlier this month after a judge in London ordered him to continue rehabilitation. He checked himself out of a drug rehabilitation clinic last week.

He pleaded guilty on Aug. 18 to five charges of possessing heroin, cocaine, crack cocaine and cannabis. The charges stemmed from arrests in April and August, in which drugs were found in his vehicle and home and he was found with a crack pipe and a small amount of crack cocaine.

The singer gained fame with his previous band, the Libertines, and as Moss' on-off boyfriend.

His drug problems attracted international attention after a British tabloid printed pictures last year of Moss apparently using cocaine at a music studio where Doherty was recording. No charges were brought against Moss.

The supermodel lost contracts with H&M, Burberry and Chanel after the photos were published, but her career seems to have suffered no lasting damage.

After apologizing to "all the people I have let down" and visiting a rehab clinic in Arizona, she resumed her international career, signing new contracts with Calvin Klein, cell-phone brand Virgin Mobile and French luxury label Longchamp and appearing on several magazine covers.

She has concluded a deal to design clothing and accessories for Topshop, the fashion chain announced last week.

Babyshambles canceled performances over the summer because of Doherty's chronic troubles with drugs and the law. The band canceled two performances in Dublin in April, but were scheduled to perform Tuesday night at the Ambassador Theatre in the Irish capital. On Wednesday night, they were scheduled to play in Belfast, Northern Ireland, before a 10-concert swing through Britain Oct. 1-10.