In what year was the album “Don’t Cha - EP” released by The Pussycat Dolls?

In what year was the album “Don’t Cha - EP” released by The Pussycat Dolls?: The album “Don’t Cha - EP” was released in 2005 by The Pussycat Dolls.
What is the most successful song from the album “Don’t Cha - EP” by The Pussycat Dolls?: “Don't Cha” is the biggest hit from the album “Don’t Cha - EP” by The Pussycat Dolls.

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