Jumpin' Jack Flash Jagger back on stage after heart surgery

CHICAGO - Reuters

Mick Jagger swaggered back to the stage on June 21 in his first concert after undergoing heart surgery in April as the Rolling Stones kicked off a delayed North American tour.

The veteran British band opened its No Filter tour in Chicago at the city's 61,500 seat Soldier Field stadium, after delaying the 17-date U.S. and Canada tour to allow for Jagger's  medical treatment.

Opening to a sold-out crowd, the band kicked off with its classic hit "Street Fighting Man" as the Stones frontman, dressed in skinny black jeans and a black and white jacket, strutted across the stage, singing and pumping his fist.

Jagger, 75, underwent heart valve replacement surgery in New York in early April, and in May reassured fans that he was back in shape by posting video on Twitter of him dancing in a studio.

"He went through it very easily," Stones guitarist Keith Richards told the Toronto Sun in an interview ahead of the Chicago concert. "He's in great shape - rocking. As I say, it seemed to be no problem at all really."