Los Angeles: Singer Harry Styles' celeb friends were banned from using micro-blogging website Twitter at his birthday party.


Harry Styles. Pic/Santa Banta 

At his 21st birthday on January 31, Styles was joined by some A-list friends at his extravagant celebrations at Lulu's Cafe here. Those present were forbidden from using the website so that details about the exclusive event remained a secret, reports mirror.co.uk.