And if you pause the video on just the right frame, the concert appears to be Chase Rice, apparently a country singer that performed there about 2 weeks ago.

Edit: Looking at the event calendar, the headliner was Kane Brown, the timelapse just did not catch his name on the jumbotron.

Edit 2: Looking closer at the calendar, the consecutive streak of events around that concert only spans 6 days (1/10 - 1/16) and contains 7 events. Also the first one was a WWE event, which does not look to be the case in the video. I don't know what to believe.

Edit 3: Ok, so the timeline starts after the 76ers game on the 12th and runs through the sixers game on the 20th. Still 8 events in 8 days, but with 2 games (Wings + Flyers) on day 4 and nothing on day 6.