THE BATTLEMENTS AND BARLEY REVUE: For his 60th birthday/25th-ish anniversary of going solo, Sting is doing a stripped-down-band-in-smaller-venues tour this fall.
added: Okay, here's a question: while I don't believe it's true of Sting himself, surely you can list artists who were, indeed, produced their best work after going solo. I'll start the list with Michael Jackson, Neil Young and Annie Lennox.