Tulisa Contostavlos was left cowering in fear after a man sneaked past the security measures of her 5-million-pound-mansion in Hertfordshire.
The 24-year-old man reportedly hammered on Tulias's front door and demanded to see her, the Mirror reported.
According to a source, the N-dubz member sent her PA, Gareth Varey to answer the door; he had a heated altercation with the stalker.
The stalker fled after cops were called but was tracked and arrested from Stamford Hill in North London, on Wednesday, by the officers.
A source close to Tulisa said that the singer has had an absolutely hellish past few days.
The insider asserted that Tulisa is at an all-time low and that the stalker has been hounding her daily since the drug fixing story - involving her - broke.
The stalker had also posted notes through Tulisa's letterbox overnight on Tuesday.
