Celebrating its 20th anniversary, Blood Brothers returns triumphantly to the Opera House, Manchester from April 16-28. And, today, readers have the chance of winning one of three pairs of tickets to see the show in this easy-to-enter competition.

Few musicals have received quite such acclaim as Blood Brothers, hailed as "one of the best musicals of all time". Blood Brothers has triumphed across the globe. Scooping no less than four awards for BEST MUSICAL in London, seven Tony Award nominations on Broadway and receiving a standing ovation at almost every performance over the past 17 years in the West End.

For further information contact the BOX OFFICE on 0870 401 9000 HOW TO WIN!

Simply call our competition hotline on 0901 151 0205 and leave your answer to the question below, along with your details when prompted.

Or you can text your answer too! Start the message by entering the keyword CHCOMP2, leave a space and then key in your answer and your name and address and send it to 88010.

Calls cost 50p. Calls from some networks may cost more. Please call from a touch tone phone. Texts cost 50p plus your mobile operator charge. Service provided by Newsquest Media Group. The closing date is midnight on Tuesday, April 10, 2007. Usual Newsquest North West rules apply.

See competition rules section for details.

No purchase necessary.

QUESTION: Which anniversary is Blood Brothers celebrating?