Tulisa arrested over drug deal claims
4 June 2013 Last updated at 16:21 BST
The former X Factor judge Tulisa Contostavlos has been arrested over the alleged supply of class A drugs.
She had been accused over the weekend by a newspaper, who said she had introduced their reporter to a drug dealer.
It was claimed the drug dealer then sold half an ounce of cocaine to them at London's Dorchester Hotel.
Entertainment correspondent Lizo Mzimba gave some background to the story.