| In our second exclusive preview clip from Tokio Hotel’s Humanoid (due October 6th), the German pop-rockers turn introspective with the wistful ballad “World Behind My Wall.” As singer Bill Kaulitz — who fronts the band with his twin, Tom — explained when we premiered an excerpt of the more metallic-sounding title track, Tokio Hotel’s second English-language album has “many different parts and melodies.” (Hear the clip after the jump.) As Rolling Stone also reported, the brothers Kraulitz co-prod |