America Gardens Theatre in EPCOT

For the next couple of months it's the Eat to the Beat concert series then Candlelight Processional will start and go through December. Here's the Eat to the Beat Schedule:
David Cook September 25-27
Wilson Phillips September 28-29
Christopher Cross September 30-October 1
Starship Starring Mickey Thomas October 2-4
Smash Mouth October 5-7
The Pointer Sisters October 8-9
38 Special October 10-11
Rick Springfield October 12-13
Sugar Ray October 14-16
The S.O.S. Band October 17-18
Air Supply October 19-21
Fuel October 22-23
Tiffany October 24-25
Dennis DeYoung, original member of STYX October 26-28
Jo Dee Messina October 29-30
Everclear October 31-November 1
Boyz II Men November 2-4
Sister Hazel November 5-6
Big Bad Voodoo Daddy November 7-9
Hanson November 10-12
Maxi Priest November 13-14
Chaka Khan November 15-16

Are the Eat to the Beat concerts open to the general public or are they ticketed events?

It's included with Epcot admission. There's 3 shows at 5:30, 6:45, and 8 p.m. Some can be pretty popular so you might want to use a FP for it if there's a group you really want to see.