Mick Jagger is officially back on his feet, about a month after reportedly undergoing heart surgery.The 75-year-old shared a video of himself on Twitter on Wednesday dancing energetically in a studio, busting some of his iconic moves in front of a mirror.Jagger chose to let the clip speak for itself and shared it without a caption.From extras.Back in March, the Rolling Stones announced they were postponing tour dates so that Jagger could receive medical treatment.The band’s No Filter Tour was supposed to begin on 20 April in Miami.The singer was reportedly suffering from a heart valve issue.Jagger has acknowledged the treatment, though he hasn’t specified the reason for it.On 5 April, he told his fans he was doing “much better” and was “on the mend”.A few days later, Jagger shared a photo of himself taking a walk in the park, confirming that his health was improving.