Joe Walsh has been in Capitol Studios in Hollywood with his brother-in-law Ringo Starr and Mick Jagger. He tweets, "Cooking up something here at Capitol Records! I think you'll like it."

Also joining in are Don Was, Bill Withers, drummer Jim Keltner, Keb Mo and former CSN keyboardist Mike Finnigan. A spokeswoman for Walsh was unavailable for comment, but perhaps he is working on the blues album he told us he wanted to do next.