"The dates that [had been] postponed, the concerts and shows, have been rescheduled for September and October," McCartney said. He was dressed in a white button-down shirt and standing in what appeared to be a rehearsal room. "So come and see us then, we'll come and see you."

The 2014 U.S. tour now begins July 5 in Albany, N.Y. and runs through Oct. 30 in Greensboro, N.C. As for his health, in the video he looks and sounds fine.