North West stepped into the spotlight in full goth mode Friday as the 12-year-old debuted her first music project, “N0rth4evr,” at a flashy Complex LA pop-up — with dad Kanye West making a surprise appearance to hype the launch. North, the eldest daughter of Ye and Kim Kardashian , marked her six-track EP release at Complex’s Fairfax shop, where eager fans queued for rare vinyl, exclusive merch, immersive visuals, and an ice cream stand dedicated to the rising star. North West stepped into the spotlight in full goth mode Friday as the 12-year-old debuted her first music project, “N0rth4evr,” at a flashy Complex LA pop-up. Instagram/@northwsst The eldest daughter of Ye and Kim Kardashian, marked her six-track EP release at Complex’s Fairfax shop, where eager fans queued for rare vinyl and exclusive merch. Instagram/@northwsst Getty Images Sign up for the California Morning Report newsletter California's top news, sports and entertainment delivered to your inbox every day. Thanks for signing up!…