LOS ANGELES — American pop star Lizzo is being sued in a California court over a snippet of an unreleased song that went viral because of a reference to Sydney Sweeney. The post blew up in August after a reference to the US actress whose appearance in a jeans advertisement had already set the internet ablaze. The social media post in question for the track "I'm goin' in till October" has the four-time Grammy winner wearing not very much as she washes a car and says "I got good jeans like I'm Sydney." But lawyers for a firm called GRC...