The undercover reporter known as the "Fake Sheikh" has told the trial of Tulisa Contostavlos it was '"outrageous" to suggest he spiked the former X-Factor judge's drink.
Giving evidence at London's Southwark Crown Court, Mazher Mahmood, denied "manipulating" the 26-year-old after he told her she was being considered for a leading role in a Slumdog Millionaire-type film, possibly co-starring Leonardo Di Caprio.
The court previously heard that Contostavlos spoke about being able to get "white sweets" - allegedly code for cocaine - while at the Metropolitan Hotel with Mr Mahmood on May 10 last year.
The prosecution suggested that Mr Mahmood and his colleague "Nish" spiked Contostavlos's drink to "manipulate" her when they met at the hotel.
Mr Mahmood replied: "Absolutely outrageous."
Under further cross-examination, Mr Mahmood told a court he wanted to "expose criminality" and denied the reason for the expose was to create a "sensational story".
Tulisa, of Friern Barnet, north London, denies being concerned in the supply of class A drugs between May 10 and May 23 last year.
The jury was sent home and told to return to court on Monday.
Former X factor judge and N-Dubz star Tulisa told an undercover reporter she could get hold of "white sweets" in an apparent reference to cocaine, a court heard.
The singer "did not negotiate the price or amount" but "did all she could to make a supply of cocaine happen," prosecutor Tim Cray said.
He added Tulisa's role in the deal at London's Dorchester Hotel in May last year was "instrumental."
The trial at Southwark Crown Court continues.
Former X Factor judge Tulisa Contostavlos helped supply cocaine to an undercover reporter because she thought he was a Hollywood film producer who could "get her a part in a big movie," a court has heard.
The 26-year-old singer allegedly boasted she could "sort out" drugs for a man she knew as Samir Khan but who was actually Sun on Sunday journalist Mazher Mahmood, also known as the 'fake sheikh.'
Southwark Crown Court heard she was "keen to be in his good books" to get the part with Leonardo DiCaprio as her possible co-star.
She put Mr Mahmood in touch with her rapper friend Mike GLC who supplied the cocaine at a late-night rendezvous at London's five-star Dorchester Hotel last May, jurors heard.
The singer also allegedly bragged that her ex-boyfriend was a "major cocaine dealer" and she used to be part of a gang who sold crack cocaine.
Mike GLC, whose real name is Michael Coombs, 36, pleaded guilty on Monday to supplying half an ounce (13.9g) of cocaine for £860.
Prosecutor Tim Cray told jurors Tulisa was "instrumental" in setting up the deal.
She denies one charge of being concerned with the supply of class A drugs. The trial continues.
Former X Factor judge Tulisa Contostavlos must wait more than a month to discover the outcome of her trial over claims she assaulted a celebrity blogger.
Writer Savvas Morgan claims he suffered swelling to his eye after an alleged incident involving the 25-year-old at the V-Festival in Chelmsford, Essex, last year.
N-Dubz star Tulisa denies the assault but her and her assistant Gareth Varey, who faces the same charge, must wait until July 2 for the verdict after a judge adjourned the case so that further witnesses can be called.
Tulisa Contostavlos's tour manager has told a court the singer was "upset but not angry" after a confrontation with a celebrity blogger.
Writer Savvas Morgan said he suffered swelling to his eye after an alleged incident involving the 25-year-old in Chelmsford, Essex, last year.
But the ex-N-Dubz star and former X-Factor judge has claimed she did not attack him and has been the victim of a vendetta, saying Mr Morgan had a "strange obsession" with her. Contostavlos denies an assault charge linked to the alleged altercation at the V Festival last August.
Singer Tulisa Contostavlos will return to court this morning for closing arguments in her trial over assault allegations.
Celebrity blogger Savvas Morgan claims he suffered swelling to his eye after an alleged incident involving the 25-year-old in Chelmsford, Essex, last year.
But the former X-Factor judge claimed she is the victim of a vendetta, and Morgan has a "strange obsession" with her.
This morning the court will hear prosecution and defence closing speeches before District Judge Angus Hamilton retires to consider his verdict.
Singer Tulisa Contostavlos is expected to make her first appearance at Crown Court today accused of brokering a cocaine deal.
The N-Dubz star is charged with helping an undercover reporter for the Sun on Sunday to obtain 13.9 grams of the Class A drug for £860.
Contostavlos, of Friern Barnet, north London, denies being "concerned with the supply of 13.9 grams of cocaine" to Mazher Mahmood between May 20 and May 24.
She is listed to appear alongside rapper Mike GLC, also known as Michael Coombs, 35, of Velocity Way, Enfield, north London, who denies a charge of supplying the drug on May 23.
Both will appear at a preliminary hearing at Southwark Crown Court.
Singer Tulisa Contostavlos has accepted £42,500 damages from a news website after it wrongly published a still from a sex tape which appeared on the internet.
TNT took the still down as soon as it knew an injunction had been granted but by then it had already received around 9,000 hits.
The details of the settlement emerged during a hearing at London's High Court today.
In July last year, Miss Contostavlos won an apology from her ex-boyfriend, rap artist Justin Edwards, who initially denied being responsible for the tape appearing on the web.
Speaking after her arrest in June, the singer, who was held along with 35-year-old musician Mike GLC, said: "I am not a drug dealer. I have never sold drugs in my life."
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.Read the full story ›