We've seen the movie and heard the soundtrack. Now Thailand's stars gather on stage to pay a special tribute to the late King of Pop. After years of natural rivalry, Thailand's musical giants, Sony Music and GMM Grammy, are joining forces next month to celebrate the life of the late and much lamented King of Pop. Artists from both labels will be on stage in two back-to-back shows titled "This Is It The Concert", in memory of Michael Jackson, who collapsed from cardiac arrest while in the middle of rehearsing for a series of 50 comeback concerts scheduled to start in London last summer.