Watch Michael Jackson's Last Performance

Embedded video from CNN Video CNN has exclusive footage of Michael Jackson rehearsing before his sold out London comeback tour on June 23 -- two days before he died. Look back at Michael Jackson's most unforgettable moments. The singer, 50, energetically dances and sings on stage at L.A. Staples Center -- the same venue being discussed for his memorial next Tuesday. See how Michael Jackson's face has changed through the years. Jackson was set to perform a duet with son Prince, 12, during his upcoming sold-out London concerts, the singer's former publicist reveals in the new issue of Us Weekly (on newsstands now). "He was planning on doing a short duet with his son, Prince," Stuart Backerman tells Us . "He knew his kids would enjoy it." (link)