All the block-rockin' beats in Lego Rock Band have been revealed, with Warner Bros. also confirming upcoming DLC and a song exporting feature . Xbox 360 and PS3 owners will have the option to download "all of the songs in the Rock Band Music Store that have been identified to be suitable for all ages." Only songs deemed appropriate will appear within the Lego Rock Band Store and the game should "highlight" any newly added "family-friendly" tracks. The Lego Rock Band disc export will cost