20. Matt Adell, Beatport, CEO
A one-time A&R man for TVT Records (he signed the KLF for their first U.S. release) and ex-vice president of Napster, Chicago native Matt Adell has run digital download store Beatport for four years, expanding its growth both monetarily (it recently sold to SFX for a reported $50 million) and in terms of awareness. Early last year, Beatport teamed with Shazam to add 1.5 million dance tracks to the latter's information database, making it easier for fans to find (and buy) their favorite DJs' killer tracks, and early this year, Beatport cut a deal with Clear Channel to syndicate a Top 20 countdown show to major-market radio stations. The company's sale to SFX hasn't budged Adell from his perch, suggesting he's as valuable to his new bosses as they are to Beatport's bottom line.