The co-defendant in the the Tulisa Contostavlos trial has also walked free after the judge decided the case against him could not proceed.
Rapper Michael Coombs, whose stage name is Mike GLC, had pleaded guilty before the trial to supplying half a gram of cocaine to undercover reporter Mazher Mahmood.
On hearing the decision the 36-year-old reportedly wept and hugged his defence barrister, Jeremy Dein QC.
More top news
The high-tech new notes due to be released in September have one major drawback - they can stick to each other, the bank has said
A family will have to give their loved one a second funeral after a mortuary blunder at Southport Hospital got two bodies mixed up.
Mark Stribling and Robert Stilwell are charged with immigration offences after a boat of 18 Albanian migrants sunk off the Kent coast.