Former X Factor judge Tulisa Contostavlos was put on suicide watch by her manager after reports that she had been involved in a drug deal.
Former X Factor judge Tulisa Contostavlos arrived home in Hertfordshire today following her arrest on suspicion of supplying class A drugs.
The 24-year-old singer first found fame with N-Dubz and was dropped as a judge on The X Factor last month.
Just days ago, Tulisa Contostavlos was officially dropped as a judge on The X Factor, with Sharon Osbourne returning to the show in her place.
Tulisa won an apology last year from a former boyfriend who leaked footage on to the internet of the two of them performing a sex act.
Today’s arrest of former X Factor judge Tulisa Contostavlos comes after the Metropolitan Police said its officers were "considering" information following an article in the Sun on Sunday.
The newspaper suggested Contostavlos had acted as a go-between in a drug deal by introducing a journalist to an alleged supplier.
The report suggested half an ounce of cocaine changed hands as a result of the deal conducted at London's Dorchester Hotel.
Scotland Yard have confirmed that a 24-year-old woman had been arrested and remained in custody after it emerged former X Factor judge Tulisa Contostavlos has been held on suspicion of supplying class A drugs.
Officers from Westminster have today, Tuesday 4 June, arrested two people, a 35-year-old man (A) and a 24-year-old woman (B), by appointment at a central London police station on suspicion of being concerned in the supply of class A drugs.
They remain in custody at a central London police station.
Former X Factor judge Tulisa Contostavlos has been arrested on suspicion of supplying class A drugs, according to Press Association sources.
Scotland Yard said yesterday it was "considering" information after a newspaper suggested she had acted as a go-between in the deal by introducing a Sun journalist to an alleged supplier.
The singer Tulisa Contostavlos has tweeted that she "won't be part of the X Factor panel this year":
Just wanted to let you all know that I won't be part of the X Factor panel this year. I've had a great time (cont) http://t.co/Yc0N71DRz7
Her tweet continues: "Just wanted to let you all know that I won't be part of the X Factor panel this year.
"I've had a great time on the show, but this year it's time to do something different.
"I'd like to thank everyone on The X Factor for two amazing years. Stay tuned as I have a very exciting announcement soon!"
Open auditions for groups for the new series are taking place in London today.
X Factor judge Tulisa Contostavlos has reportedly bought all of tonight's finalists a bouquet of flowers.
X Factor judges Gary Barlow and Tulisa Contostavlos were locked in peace talks on Saturday night after he accused the N-Dubz star of having "fag-ash breath" in front of millions of viewers.
Barlow has said sorry for the comment he made on Saturday night's ITV1 programme as show insiders revealed the pair spent time alone in a dressing room discussing their spat after filming ended.
A show source said: "They were locked in a dressing room for peace talks after the show; just the two of them. Gary apologised a lot. Tulisa was angry but eventually she accepted his apology.
"Gary feels really, really bad about what he said. It was speaking without thinking in the spur of the moment and he didn't mean it."
X Factor judge Tulisa Contostavlos moaned about the "bloody British weather" as the rain started pouring during her V Festival performance.
The singer sang on the main stage at Hylands Park in Chelmsford, Essex, on Sunday just as the rain began to fall.
The N-Dubz singer wore a pink short-sleeved jacket, polka dot corset and patterned trousers as she performed solo material, including her new single Live It Up.
As lightning struck, Tulisa - who played V Festival's Weston Park site in Staffordshire on Saturday, told fans:
"Look at this bloody British weather."
The sun came back by the end of Tulisa's set during the second day of music at the festival.
Also performing at the event, now in its 17th year, are Sir Tom Jones, Happy Mondays and Snow Patrol.
X Factor judge Tulisa Contostavlos said her ex-boyfriend Justin Edwards had "messed with the wrong woman" after she took High Court action against him over a sex tape of the couple which appeared on the internet.