Golden Globe winner Reese Witherspoon is keen to make a third Legally Blonde movie, but only if producers agree to let her sing.

The actress relished her melodious role as JUNE CARTER CASH in Johnny Cash biopic Walk the Line, and now wants to incorporate her vocal talents into all her movies.

And after watching pal Renee Zellweger in classic musical Chicago, Witherspoon is considering a musical version of the teen comedy that made her famous.

She says, "Maybe she'll sing? I would love to do a musical. I watched my friend Renee do it so well in Chicago."

Witherspoon played ELLE WOODS in Legally Blonde, and sequel LEGALLY BLONDE 2: RED WHITE + Blue.