Given the question: What type of details about michael cohl  can be gathered from the following bio?  Bio: michael cohl is a canadian concert promoter , theatrical producer and touring impresario . he is the former chairman of live nation , the largest live entertainment company in the world . cohl now runs s2bn entertainment , with offices in new york and toronto . having been named the howard hughes of rock ` n ' roll by `` fortune '' magazine , cohl is most famous for having overseen the tours and related ancillary businesses for more than 150 artists , including frank sinatra , michael jackson , the rolling stones , prince , stevie wonder , pink floyd , crosby , stills , nash and young and u2 . he has also been credited with developing the concept of `` package '' touring . eliminating the middleman , cohl worked directly with the artist to strategize and route the tour , promote the dates , and assist in the development and exploitation of the lucrative aftermarket -- books , films , dvds , television specials , and merchandising . he is currently the lead producer of '' '' , the most expensive musical in broadway history , with music by bono and the edge of u2 . in december 1995 , the toronto star printed a 4,000 word article entitled `` king cohl of rock 'n' roll and the tax that never was . '' from conversations with a number of managers of touring bands , the reporter argued that cohl 's concert productions international misrepresented to touring artists that it was collecting a tax , while not remitting any such tax to any government body . kevin donovan later printed a full retracement of this story and his findings were found to be false & slander .
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