S04E19 Brian Sings and Swings
After a near-death experience (caused by Peter), Brian decides to live for the moment, and ends up joining (along with Stewie) Frank Sinatra Jr.'s stage show. Although things are great for them at first, Brian takes the hard living too far and nearly drinks himself to an early grave. Meg, meanwhile, finds a school group that wants her as a member, but it's the Lesbian Alliance. How far is she willing to go to fit in?