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.

Dream On Track-list:

1. “Dream On” Aerosmith
2. “Safety Dance” Men Without Hats
3. “I Dreamed A Dream” Les Miserables
4. “Dream A Little Dream of Me” Mama Cass

Music Available on iTunes 5/18

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Listening to:

“Dream On” featuring Neil Patrick Harris

“Safety Dance”

“I Dreamed a Dream” featuring Idina Menzel

“Dream a Little Dream of Me”