In an taped investigation, the N-Dubz star admitted she could supply the class A narcotic to an undercover journalist.

She told The Sun on Sunday`s secret reporter: "Half my phone book sells it. Of course I can get it for you.

"Half the guys I know are drug dealers. One`s a massive cocaine dealer. He`s my best friend. He`s a gangster - he`s my gangster."

The 24-year-old singer revealed the "lingo" she uses to help set up deals - with "green" and "white sweets" used as code for cocaine and cannabis

She said: "We talk in lingo. Like we know what. I can`t call him and go, `Have you got any?` I`ll say, `Hi, have you got any sweets?` ... And I`m referring to what he knows is what. Like we have a whole lingo."

While the former `X Factor` judge said she doesn`t take cocaine herself, when the reporter asked if she could get some for him she could "definitely" sort it out.

She told them: "Definitely on the day. What I`ll do, I can definitely sort it - just got to make some more calls ... I have a number for a very good friend of mine to call when you would like your white sweets.

"He will sort you out immediately. You just say, `Hi, it`s Tulisa`s friend and I`m calling about white sweets for me`. That`s all you have to say."

When the journalist promised to keep the deal a secret, she laughed: "I don`t think it would sound too good if Tulisa was off finding white sweets."

The newspaper revealed their findings have been passed onto the police.

A spokesman said: "We have received information concerning the alleged supply of illegal drugs at a central London location. We are considering the information."
sections: Celebrities