The concert was organised by the two sons of the princess, Prince William and Prince Harry. The 10,000 tickets for the July 1 show were gone quickly.
This year, the concert will feature performances by Elton John, Bryan Ferry, Joss Stone, Pharrell Williams, Duran Duran, Lily Allen, Kanye West, Rod Stewart, Status Quo, Natasha Bedingfield, The Feeling, James Morrison and Orson.
Proceeds from the show will go entirely to charities that the princess was involved with before her death.