TO CELEBRATE the return of Roller Disco at The O2, News Shopper is offering readers the chance to win a family ticket for four people to the popular event.

Brought to you by the people behind the event at Renaissance Rooms in Vauxhall, the rink is the biggest in London so 350 skaters can shake, shimmy and slide along to the latest pop hits and disco classics.

Themed music nights will coincide with acts performing in the arena, so rock out when Bon Jovi or go crazy to Lady Gaga.

The Roller Disco will run at The O2, next to the exhibition centre, until August 31, from Tuesday to Sunday.

The ticket will be valid on any day and at any time during the rink's opening hours.

To win, answer this simple question: How many skaters can can shake, shimmy and slide at The O2's roller rink?

A) 250, B) 350, C) 450

Send your answer, with your name, address and contact number on a postcard or a stuck-down envelope to: Roller Disco Competition, News Shopper, Mega House, Crest View Drive, Petts Wood, Kent, BR5 1BT.

You can also enter by sending a text. Type ROLLER leave a space and send your answer with your name and address to 80360.

The closing date for entries is June 2.

Competition rules: Employees of Newsquest (London) Ltd, their families and anyone else connected with this promotion are not eligible to enter. Prizes are not transferable and there are no cash alternatives. The editor’s decision is final. Texts cost 50p plus your normal operator text charge. Text lines close 1/6/2010 at 11.59pm. For full terms visit newsquest.co.uk/terms. Service provided by Newsquest Media Group.