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Harry, 24, was expecting to stay with Ben Winston and his family in north London for two weeks while he was waiting to get his mansion on nearby Hampstead Heath ready but he was with them for 20 months.

He brought home a string of girls, including singer Taylor Swift, to share his humble bachelor room – with only a double mattress on the floor.

Ben, 36, one of Harry’s closest friends behind 1D’s early music videos, is writing the show for the CBS network.

He told how he and his wife Meredith would stay up at night to see who their guest brought to their home in Hampstead in north London.

Their young daughter Ruby was also star struck.