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Madonna has retained her trademark gap between her teeth over the years.
(Pictured: Left: Madonna performs at the American Airlines Arena on Nov. 20, 2012, in Miami. / Right: Madonna greets her fans from a platform in Times Square, near the Broadway movie theater, where her new film, 'Who's That Girl' made its New York debut on Aug. 6, 1987._
(Jeff Daly / Invision / AP)