Glee's Most Memorable Guest Stars: Britney Spears to NeNe Leakes, and More! (PHOTOS)

Over the past three years, Glee has managed to rack up quite an impressive list of celebrity guest stars. From famed singers like Britney Spears and Ricky Martin, to reality star NeNe Leakes, the list goes on and on. Now, with news that both Lindsay Lohan and Whoopi Goldberg will appear on the show before the end of Season 3, we’re taking a look back at Glee’s most memorable guest stars so far!

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