Selena Gomez and her mother, Mandy Teefey, are accused of defrauding investors in the mental health startup Wondermind, which collapsed last year. The lawsuit also names co-founder Daniella Pierson. Investors claim the pop star failed to deliver on promises to use her global celebrity and social-media following to promote the company. The suit alleges that the trio misled investors about the startup's prospects and their ability to make it successful. Wondermind was founded by Gomez, Teefey, and Pierson as a mental health platform. The company's failure left investors with losses, prompting legal action. Neither Gomez nor her representatives have publicly commented on the allegations. The case is the latest legal trouble for the singer, who has been open about her own mental health struggles. The lawsuit seeks damages for the investors, though the specific amount has not been disclosed.