Idina Menzel, now famous for her hit song "Let it Go" from the movie "Frozen," had a bit of a wardrobe malfunction while performing at Radio City Music Hall on Monday night in New York.

Menzel was singing "Take Me or Leave Me" from the musical "Rent" when she was tipped off someone in the audience that her boob was working its way free of the leather bra she was wearing.

A crew member quickly came out to assist Menzel's slowly descending boob.

Menzel handled it all in stride, saying: "Well, f**k it; they're real!"

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