In this Tuesday, Jan. 28, 2014 photo provided by MTV, Miley Cyrus performs with Madonna during the taping of “Miley Cyrus: MTV Unplugged,” in the Hollywood section of Los Angeles. The 21-year-old pop star and the 55-year-old Queen of Pop grinded and grabbed each other as they performed Cyrus’ hit “We Can’t Stop” and Madonna’s 2000 track “Don’t Tell Me.” The MTV special that closes with the duet is set to air Wednesday. (AP Photo/MTV, Chris Polk)