I believe 1978 - Lynyrd Skynyrd, J. Geils, and Frampton headlined at JFK Stadium. Excellent show. Interestingly, I am reading Framptons book ‘ Do you feel like I do’. The concert was to be 115000, but his manager Dee Anthony, who had mob ties, printed 25000 counterfeit tickets and pocketed the proceeds. I recommend the book, some interesting insight to the industry back then and to how and why Framptons career played out as it did.