Glee Sneak Peek! Lea Michele and Idina Menzel Perform "Somewhere" in Season 3, Episode 2: "I Am Unicorn" Tweet September 26, 2011 by Semhar Related: Glee, Music , Sneak Peeks , Lea Michele , Idina Menzel , Rachel Berry , Shelby Corcoran , Season 3 Episode 2 Credit: YouTube Shelby (Idina Menzel) makes a comeback as a show-choir coach in Season 3, Episode 2, so you know what that means: mother/daughter (duet) time! Rachel (Lea Michele). (And if your first thought was Will/Shelby get-it-on time, feel bad.) Original Air Date: September 27, 2011, 8/7c
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