Hassan Mahmood, 27, pleaded responsible to finishing up a marketing campaign of harassment for greater than a yr.
Isleworth Crown Courtroom heard he turned obsessive about the 43-year-old after she posed for a “selfie” with him.
Mahmood obtained the journalist’s quantity when she ordered a taxi by means of reserving app Hailo, the courtroom heard.
He known as her cell phone 1,182 occasions, despatched her 203 textual content messages and despatched her “masses” of WhatsApp messages.
Prosecutor Ruxana Ali mentioned the defendant informed Khan, who can also be identified by her maiden title Goldsmith, that he “beloved her”, “wished to know her” and requested her “why he couldn’t be associates together with her”.
Ms. Ali mentioned Mahmood used 18 completely different cell phones to contact her.
Jemima Khan, who’s the daughter of the late billionaire entrepreneur Sir James Goldsmith and sister of MP Zac Goldsmith, lastly spoke to police after Mahmood informed her he wished to go to her dwelling.
The motive force’s barrister Umar Ali mentioned the defendant was a “huge fan” of Jemima due to her marriage to his hero, Pakistan cricket legend Imran Khan.
Mahmood, of Waltham Forest, north-east London, pleaded not responsible to a extra severe cost of stalking the campaigner, which was allowed to lie on file.
Decide Martin Edmunds QC adjourned sentencing to a later date.