Harry Styles
Harry Styles treated Poppy Delevingne to a lap dance.

Harry Styles reportedly helped Poppy Delevingne wave goodbye to her single years in epic style by giving her a lap dance on her hen night.

According to the Sun newspaper, the One Direction star gate-crashed the 26-year-old model's bash at London's Groucho Club dressed as a member of the 90s band Hanson to deliver the special treat.

''Harry rocked up to the club with Nick Grimshaw and quickly stole the show with his get-up," an insider said.

''Mmmbop was requested from the DJ and Harry launched into a sexy dance for Poppy and her mates, who were in fits of giggles. He was entertaining everyone for the evening.''

Not satisfied with just showing Delevingne his moves, the Story Of My Life hitmaker reportedly jumped onto her sister Cara's lap after he finished the cheeky dance.

Stars including Alexa Chung, Georgia May Jagger, Jaime Winstone and Sienna Miller were also present at the retro-themed party.

Delevingne, who is best known as the face of Vero Moda is set to marry long-term love James Cook.

Meanwhile, 19-year-old Styles is rumoured to be secretly dating beautiful Brit Daisy Lowe. The couple have reportedly been going on secret dates after being introduced through mutual friends.

"When they see each other they make sure it's in private at night or with a group of friends," a friend said.