As rumoured last week, it's coming out in Europe on May 23, according to Eurogamer. The site's also confirmed the Neogaf posting that the title will be a timed exclusive for Xbox 360, with Wii and PS3 versions hitting later in the year.
Apparently Europeans will be able to download the same tracks and the Americans, as found here.
There's a press event for the game later today in the UK, so hopefully we'll get a price to go with the date.
Update: Press release after the link.
MTV Games, Harmonix and EA Announce UK Release Date for Rock BandTM
Rock Band will make its UK debut on Xbox 360 on May 23
Guildford, UK – April 8, 2008 – Rock Band's European tour will be hitting the UK this spring! Harmonix, the leading developer of music-based games, and MTV Games, a division of Viacom’s MTV Networks (NYSE: VIA, VIA.B), along with marketing and distribution partner Electronic Arts, Inc. (NASDAQ: ERTS), today confirmed plans to release the award-winning music video game Rock Band this spring in the UK.
The UK release of Rock Band will have an exclusive launch window on the Xbox 360 videogame console from Microsoft, beginning on May 23. Rock Band will be available for additional platforms later this summer.
Rock Band is an all-new platform for music fans and gamers to interact with music. The game challenges players to put together a band and tour for fame and fortune, mastering lead/bass guitar, drums and vocals. With more master recordings than any other music game, Rock Band features some of the world’s biggest rock artists and spans every genre of rock ranging from alternative and classic rock to heavy metal and punk.
In addition to the 58 tracks from the North American release, Rock Band will feature nine new tracks spanning German, French and UK hits including:
• Blur “Beetlebum” (English)
• Oasis “Rock ‘n’ Roll Star” (English)
• Tokio Hotel “Monsoon” (English)
• Muse “Hysteria” (English)
• Les Wampas “Manu Chao” (French)
• Playmo “New Wave” (French)
• Die Toten Hosen “Hier Kommt Alex” (German)
• Juli “Perfekte Welle” (German)
• H-Block X “Countdown to Insanity” (German)
Rock Band’s unprecedented offering of over 70 songs to date currently available for purchase and download in the US will be made available in Europe beginning on Tuesday, May 27th. Each track will be available for 160 Microsoft Points on Xbox 360. Following that date, all new Rock Band DLC will be available simultaneously in the US and Europe on a weekly basis. For a complete list of Rock Band songs available for purchase to date, please go to http://www.rockband.com/dlc.
Since its North American release in 2007, Rock Band has garnered over 40 awards including Game Critics Award: Best of Show E3 2007 and three awards at The 11th Annual Interactive Achievement Awards including Outstanding Innovation in Gaming, Family Game of the Year, and Outstanding Achievement in Soundtrack.
Rock Band is rated 12+ by PEGI: Sex, Bad Language, PEGI Online.
For more information on Rock Band and Harmonix Music Systems please visit www.rockband.com and www.harmonixmusic.com.
Developed by Harmonix, MTV Games is the publisher of Rock Band. EA is the exclusive distribution and marketing partner for Rock Band.