For those who haven't noticed, David Bowie pretty much vanished sometime around 2006. Sure, he walks the streets of New York with his wife Iman and their daughter and makes the occasional appearance at black tie charity balls and movie premiers – but he hasn't released a new album since 2003 or performed a concert since 2004. He obviously has every right to retire, but the man is only 65. Chuck Berry is a full 20 years older, and he's out there all the time. How great would it be if Bowie did one final tour, giving us all the opportunity to say goodbye? The 2003-4 Reality tour was amazing, but nobody knew it was the end of the line. David, at the very least pull a Led Zeppelin and give us one final concert. Let's end this this properly. Singing "Changes" with Alicia Keys at a charity show is no way to go out.