Tulisa Contostavlos' lawyer Ben Rose has said she would be denying the charge and claimed she joined a line of celebrities who had had been used as "fodder by greedy newspapers".
Tulisa has been charged with a serious criminal offence to which she will plead not guilty.
This case is not simply about drug supply. It is about the limits which we set on the conduct of journalists.
The media have rightly been criticised in recent years for gross invasion into the private life of others.
– Ben Rose
Tulisa is the latest in a long line of people who have been treated as fodder by greedy newspapers.
This was a deliberate attempt to target a young woman who is all the more vulnerable because of her celebrity status.
In due course Tulisa will give a full answer to these allegations in court.
Police have confirmed that singer Tulisa Contostavlos has been charged with being concerned in the supply of class A drugs.
Michael Coombs, 35, of Velocity Way, Enfield, has been charged with supply of class A drugs.
They have been bailed to appear at Westminster Magistrates Court on the 19th December.
– Baljit Ubhey, CPS London Chief Crown Prosecutor
The Crown Prosecution Service has today authorised the Metropolitan Police Service to charge Tulisa Contostavlos, 25, with being concerned in the supply of Class A drugs.
This charge relates to an investigation by The Sun newspaper between early March 2013 and 23 May 2013 which resulted in the supply of Class A drugs to an investigative journalist.
We have determined that there is sufficient evidence for a realistic prospect of conviction and that a prosecution is in the public interest.
Ms Contostavlos will appear before Westminster Magistrates' Court on 19 December 2013.
Former X Factor judge Tulisa Contostavlos is to be charged with being concerned in the supply of Class A drugs, the Crown Prosecution Service said today.
Read more: Singer Tulisa charged with Class A drug offence