New Memoir Reveals Princess Diana's Reaction to 1985 Dance Performance

Anne Allen's book details the late princess' emotional response to King Charles' dismissive reaction at a charity event.

Princess Diana performed a surprise dance with Wayne Sleep at a 1985 charity event to impress King Charles.
The dance, set to Billy Joel's 'Uptown Girl,' received roaring applause from the audience.
King Charles' lukewarm response left Diana feeling deflated and unappreciated.
Anne Allen, Diana's ballet instructor, recounts these events in her new memoir, 'Dancing With Diana.'
The memoir explores Diana's struggles within her marriage and her search for approval.