Continuity mistake: On the roof, Cory is expressing to AJ how he should go to art school. She then shoves him. His sweater slips down way off his shoulder. The camera cuts to another angle and his sweater is back on his shoulder. His hand position also changes. His right hand was down in front of him before the camera cut, but his hand was touching his face after the camera cut. (01:23:00)
Continuity mistake: When AJ and Cory are talking out back while AJ is painting, his hair is loosely hanging off the front of his head and flowing in the wind. When the camera changes angle, his hair is now neatly glued to his head. (00:55:15 - 00:55:40)
Answer: I'm pretty sure it was the Eddie that gave him the brownies, because the band we see that is onstage at the time is Gwar, if I am not mistaken. They were famous for having a monster onstage that would 'eat' fans.
T Poston
Yeah, cause Eddie gave him the pot brownies that made him hallucinate being in a Gwar show, so he's thanking him.