On today's show, I talk to "Conan" writer Brian Stack. Taking his first improv lesson in 1987, Brian spent the next decade honing his craft, and performed at Second City for four of those years. In 1997, he joined the writing staff of "Late Night with Conan O'Brien", and since then has stayed with the show through its three iterations, where he's played numerous characters such as Clive Clemmons, Kilty McBagpipes and one of the Slipnutz.Check out the website for Beginnings, subscribe on iTunes, follow me on Twitter!