Mick Jagger will appear on Tuesday's "Today" show to talk about "Too Many Cooks (Spoil The Soup)," a previously unreleased collaboration with John Lennon.
It was during Lennon's "Lost Weekend" period and he and Jagger were hanging out, getting stoned and jamming with other musicians on blues changes.
"Nothing would really come out of it," Mick tells Matt about the sessions.
Then John pulls out the tune.
"We were very happy to have something to focus on.  And then we all learned it very, very quickly.  And John was so impressed we all could learn it. And I always thought when I went back to these sessions that John was playing guitar on this.  But  the engineer said 'He wasn't playing guitar.  He was producing.'"
Track is on "The Very Best of Mick Jagger" (Atlantic/Rhino), which  will be released Tuesday.