Tulisa Contostavlos has urged police to investigate undercover reporter Mazher Mahmood - known as the 'Fake Sheikh - and "put an end to his deceits".
She was speaking after her trial on drugs charges collapsed with the judge telling jurors there were "strong grounds to believe" that Mr Mahmood had "lied" at a pre-trial hearing.
More top news
Up to 10cm of snow could hit parts of Britain today as forecasters predict a cold snap in the lead-up to the New Year.
Hacking group Lizard Squad claimed responsibility for the attack which left thousands struggling to access their accounts for hours.
Three men broke into a house on Christmas morning but when the owner said he had no money they took his pets instead.