Video of Michael Jackson's Last Rehearsal Released

Michael Jackson's concert promoter for his "This Is It" tour, AEG Live, released a short video of his last rehearsal June 23, where he sang the song, "They Don't Really Care about Us," according to FOXNews.com.

Despite not being as flexible and bouncy as he was back in his younger days, Jackson moved well in the video, and his voice sounded strong. The video shows Jackson interacting with those on stage and dancing. A photographer, Kevin Mazar, who was present at the rehearsal, said that he looked like the old Michael Jackson.

According to the Associated Press, the Drug Enforcement Administration recently joined the investigation into Jackson's death, because it is more familiar with incidents involving prescription drugs than the local police are, an enforcement officer said.

According to The New York Times, a memorial service is planned for Jackson at the Staples Center in Los Angeles on Tuesday.

Jackson was to perform 50 concerts at London's O2 arena this month.

Video of Jackson's last rehearsal can be seen at FOXNews.com.