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Charice and Lea Michelle did a confrontation duet singing the song "Telephone" for Glee Season 2.

Charice plays Sunshine Corazon, a Filipino exchange student who wants to join the Glee Club and a rival for Lea Michelle's character Rachel Berry.

In this clip, Charice is singing inside the comfort room and Rachel did a singing face-off however, Sue Sylvester cuts them off with another famous line, "Shut-up!"

Longer version