In a new preview E! have released for Mariah's World, Carey caught her backup dancer-turned-boyfriend Bryan Tanaka unawares.
During a concert, which he watched from the wings because a leg injury had prevented his performing, she surprised him by bringing him onstage.
Settling him down onto a chair, she gave him a lap-dance as she cooed her way through Touch My Body, a song from her 2008 album E=MC².
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