Howlin' Wolf has filed a lawsuit against StubHub. The music venue in New Orleans is pursuing a case. It involves speculative ticket sales. Tickets were offered on StubHub before the venue approved them. StubHub operates as a online ticket resale marketplace. Speculative sales happen when sellers list tickets they have not acquired. Howlin' Wolf says this happened without authorization. No more details were given. The lawsuit aims at this kind of premature listing. StubHub permits resales, but this case challenges the timing.