Firefly Music Festival – The Woodlands- Dover, DE – September 23 to 26, 2021 (A PopEntertainment.com Concert Review) Although this was the first Firefly Festival back after a year and a half off due to the COVID-19 pandemic – or perhaps because of it – fans were more eager than ever before to run through the gates to the four-day-long festival. This was the second year of Firefly being under the ownership of AEG Presents, and the hard work the company put into creating the be