Michigan rock fans on Twitter may have seen a suggestion from Joe Louis Arena that Paul McCartney may be headed to town soon! McCartney hasn't been in Detroit since a visit to Comerica Park in 2011. Earlier today, McCartney announced shows in Columbus and Toronto in mid-October. And, Joe Louis Arena threw out on Twitter a picture of a left-handed guitar with a Red Wings logo, some McCartney lyrics, and #outthere...Out There is the name of the tour. Expect an official announcement Tuesday.