Bob Lefsetz, Santa Monica-based industry legend, is the author of the e-mail newsletter, "The Lefsetz Letter". His intense brilliance captivates readers from Trent Reznor to Kid Rock to Drake to Quincy Jones to music business honchos like Michael Rapino, Craig Kallman, Jay Marciano and Irving Azoff. Never boring, always entertaining, Mr. Lefsetz's insights are fueled by his stint as an entertainment business attorney, majordomo of Sanctuary Music's American division and consultancies to major labels.