Inspired by Meyer's "Twilight" series, evolved a genre of geek rock called "Twi-rock", similar in purpose to wizard rock inspired by J.K. Rowling's "Harry Potter" series. Examples of these "Twilight"-themed bands include the Bella Cullen Project, Twilight Music Girls, Be Safe Bella, Bella Rocks, and the Mitch Hansen Band. The Mitch Hansen Band wrote the song "By You" in hopes that it would be included on the "New Moon" film soundtrack. An unofficial "Twilight" themed fan convention called TwiCon was organized in Dallas, Texas in summer 2009 which included "Twi-rock" band performances, a Volturi Ball, panels, workshops, and vendors.