Lenny Abrahamson’s Frank (which is a MUST watch) is opening August 22nd in the States and Michael Fassbender made an appearance on the Colbert Report, which included him donning the Frank head and singing his lungs out! For readers outside of the States there is a youtube embed directly below (it’s a bit shitty, but it’s all we could find) and for American readers or VPN users, there’s the official version directly underneath that.
