Jackson's final rehearsal photos show him in great form

The photographs of Jackson's last rehearsal, taken just 48 hours before his death, show the pop star in great spirit.

The pictures, thought to be the last photographs of the 50-year-old Star, show Jackson rehearsing for his comeback tour at London's O2 Arena.

The 'This Is It' lighting display is behind him as he pulls off an impressive high-energy routine in Los Angeles, the Sun online reported.

In this handout photo provided by AEG, Michael Michael Jackson rehearses at the Staples Center in Los Angeles on June 23, 2009, just days before his death

Jackson rehearses at the Staples Center in LA on June 23, 2009

In this handout photo provided by AEG, Michael Jackson rehearses in Los Angeles on June 23, ahead of his comeback tour

A source who was present during Jackson's final rehearsal in Los Angeles said, "Michael was in better form than for years. He was preparing for what would have been an absolutely incredible show.

He was laughing and joking with his dancers. He seemed to have so much energy, it's hard to believe that 48 hours later he was dead."

Photographer Kevin Mazur, who took the photographs, said, "When he hit the stage I was thrilled that the magical Michael Jackson was back."

The 50-date concert shows, starting from July 13, were supposed to be Jackson's return to stage after a decade. The pop star had labelled them his "final curtain call".