"Where shall we go?"

That's the question U2 is asking its fans in an online lyric-hunt contest to promote the band's latest greatest-hits compilation, U218 Singles.

The band has posted banners containing U2 lyrics on more than a dozen Web sites throughout the world, including MP3.com, highlighting letters within those lyrics that will eventually form the answer to the aforementioned question.

Those who get the right answer will have a chance to go somewhere themselves--to Honolulu, Hawaii, to see the final show of U2's marathon Vertigo tour at Aloha Stadium. Pearl Jam is set to open the show.

The contest kicked off this week, with each site's lyrical excerpt containing one highlighted letter that will eventually make up the answer. Contestants must submit answers to the contest before November 3.

The contest winner will be announced November 6.

U218 Singles features 16 of the band's greatest hits, along with two new tracks produced by Rick Rubin. The first is a collaboration with Green Day on a cover of the classic punk track "The Saints Are Coming" by the Slits.

Here are the sites participating in the contest:

UK – Channel Four Music

USA – MP3.com

UK- NME Magazine

Ireland – Hot Press Magazine

Australia – Triple M Radio

Holland – Telegraaf Newspaper

Norway – MSN

Denmark – BT Newspaper

Spain – 20minutos – Free Daily Newspaper

Japan – Asahi Newspaper - Sports

Japan – Asahi Newspaper - Culture

Canada – Dose

Switzerland – 20minuten – Free Daily Newspaper

Austria – Osterreich – Daily Newspaper

Germany – Laut.de – Music Website

Sweden – TV4

U2.COM