The Best, Most Nostalgic Part of Grey's Anatomy's 300th Episode Is the Music

Ah, another iconic song that appears in the very first episode of the show. This week, a cover plays while Alex shows Jo the "Izzie" character so she can get a sense of what the real Izzie is like. In the pilot, "They" plays after Miranda Bailey (dubbed "The Nazi") has assigned suck-up Izzie to rectal exams. Cristina is spying on an operation. George is trying and failing to do this whole intern thing. And Meredith is desperately trying to find her way around the hospital. Classic Grey's.