Harry Styles reunites with Caroline Flack at birthday bash

One Direction star Harry Styles was reunited with his ex-girlfriend Caroline Flack during his birthday party in London on Thursday night.

The singer celebrates his 19th birthday on Friday and he marked the occasion by taking a group of his friends for a night out in the capital on the eve of his big day.

Styles and his pals, including actor James Corden, enjoyed dinner at a Mexican restaurant before going on to party at the Groucho Club venue, where he met up with his former girlfriend Flack.

Styles split from the 33-year-old TV presenter last year after a three-month relationship, and he was recently rumoured to have ended his latest romance with U.S. pop star Taylor Swift.

In a post on Twitter.com on Friday, Styles acknowledged his birthday, writing, "I feel olllllllllllldddddddddddd (sic)."