"It's shocking, I've been to a few Glastos in my time, I've even played at a few, and it just didn't seem like that was the kind of artist they had headlining. I heard they called him and he didn't even know what it was." John Lennon's son SEAN is baffled as to why Bruce Springsteen was chosen to headline this year's (09) U.K. music festival Glastonbury.