Napster founder and early Facebook shepherd Sean Parker is helping to make a bid that may see him having some control over one of the very music labels that tried to shut him down, insiders said late Friday. He was reportedly teaming up with investors Ron Burkle and Doug Teitelbaum to buy Warner Music Group. While his own personal worth wouldn't be at stake, AllThingsD understood his interest was in a letter attached to the start of the bidding process.