Harry Styles enforced a strict Twitter ban at his 21st Birthday Bash

Guests were forbidden from using the micro-blogging website in a bid to keep details of the exclusive bash a secret.

Mon, 02 Feb, 2015 - 10:58

Anna O’Donoghue

Harry Styles' birthday party guests were banned from Twitter.

A-listers inside the One Direction star's extravagant 21st birthday celebrations at Lulu's Café in Los Angeles on Saturday were forbidden from using the micro-blogging website in a bid to keep details of the exclusive bash a secret.

Ex-girlfriends Cara Delevingne, Kendall Jenner and Kimberly Stewart all attended the £200,000 celebration, as well as his current lover, 21-year-old Victoria's Secret model Nadine Leopold, with a source saying Harry's charm has enabled him to stay friendly with his former flames.

"He's such a charming guy, even his exes want to be around him. It's a credit to his good nature that girls he has dated all wanted to come and help him celebrate," a friend of the 'Steal My Girl' singer told the Daily Mirror newspaper.

The birthday boy - who is worth an estimated €15 million - pulled out all of the stops to mark the special occasion, by hiring out the entire venue and treating those who came to sprinkle-covered cupcakes decorated with the letter 'H', as well as several rounds of karaoke and an instant photo-booth.

In which Kelly Osbourne had loads of fun in. Though we wonder how she snuck this photographic evidence through the social media police?

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Other guests included Adele, David Beckham, Chris Martin, and Jennifer Lawrence, but 'Shake It Off' hitmaker Taylor Swift was not in attendance at the party following the pair's bitter break-up in 2013.