It's hard for me to think of ''The Confrontation'' without flashing back to Neil Patrick Harris and Jason Segel breaking into that song, while guesting on ''The Megan Mullally Show'' (2006). They were there to plug ''How I Met Your Mother,'' and their co-star Josh Radnor even had a ringside seat.
(Several years later, Neil and Jason reprised this on an ''Inside the Actors' Studio'' devoted to ''How I Met Your Mother.'')
