Following the announcement that the Rolling Stones have postponed their upcoming North American tour, comes the news that Mick Jagger will reportedly undergo heart valve replacement surgery at a Manhattan hospital this week. The Drudge Report quoted a source stating, "Jagger is expected to make a full recovery and will be back on stage by summer. The procedure has a 95-percent success rate -- and Jagger (who is 75) is in extraordinary physical condition."

The New York Post reported that Jagger is set to have a stent placed in his heart and the Stones are already in the midst of rescheduling the stadium dates. The Stones' 15-date trek was supposed to kick off on April 20th in Miami Gardens, Florida at the Hard Rock Stadium. No make-up dates for the tour have been announced.

Although Mick Jagger is now 75, that doesn't mean that he pulls any punches or holds anything back once he hits the stage: "Listen, when you do it at 19, you do things you can't (laughs) do at my age. But I still try to make the show as (laughs) energetic as I can make it."

AUDIO: MICK JAGGER ON KEEPING THE STONES SHOWS ENERGETIC