Glee Cast Dream On With Neil Patrick Harris Tonight

The cast of Glee will be dreaming in tonight's episode which features guest star Neil Patrick Harris. The episode is named after the Aerosmith classic "Dream On," which will be featured in the show.

Here is the info: Will's high-school rival (Neil Patrick Harris) shows up and causes trouble for the glee club. Meanwhile, Rachel struggles with a longstanding personal problem; and Artie's dream leads to an adventure. Watch this all-new episode of Glee airing Tuesday, May 18 (9:00-10:00 PM ET/PT) on FOX.

Music from Dream On will be available on iTunes on 5/18. Track-list: "Dream On" Aerosmith - "Safety Dance" Men Without Hats - "I Dreamed A Dream" - "Dream A Little Dream of Me" Mama Cass

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