Brian begins to think he's not so smart when he takes the SAT'S for Meg and gets a low score, so Peter decides to show him the joys of being an idiot.
Did You Know?
The phrase "we all know who the other actress is" from the movie Black Swan, refers to Mila Kunis, who also voices Meg on Family Guy. See more
The story is confused and ultimately doesn't establish whether tumor made Brian stupid or not. Failing the SAT and getting down about it, and then hanging out with Peter and his enjoyable idiotic activities, made him look stupid but don't fit plausible together. The operation wouldn't have made him normal again, he could have to chose to go back to his old lifestyle if he wanted to (this makes his bitter, sarcastic comments about how Stewie ruined his fun new life by tricking him into having the tumor removed inconsistent with how he acts the rest of the time). See more
Hey, this isn't the Kenny Chesney concert!
References Black Swan
Traditional, arranged by Janne Ericsson
(uncredited), Erkan Oban
(uncredited) and Pat Reiniz
Performed by Rednex See more