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We thought she went lighter!

After tweeting a photo of herself on Saturday with noticeably lighter locks, Miley Cyrus stepped out today and showed off her new blonde 'do at her Pilates class in Los Angeles. The 19-year-old starlet was also joined by fiance Liam Hemsworth, and she gave us a quick smile before her workout.

Maybe she's trying out new looks for her upcoming wedding? She hasn't announced a date for her nuptials, but according to various reports Miley is very eager to start a family with her hunky beau.

A source close to the singer/actress told Us Weekly, "Miley and Liam really want to have a baby quickly," noting that Hemsworth is the one pushing for it after his older brother Chris and wife Elsa Pataky welcomed daughter India Rose in May. "They are both mature and ready for this," adds the insider. "Miley is 19 going on 40."