Los Angeles: After releasing her much anticipated new album "Anti" earlier this year, singer Rihanna is reportedly ready with its follow up. Producer Cardo claimed in a new interview with Complex magazine that he had done a song for the "Diamonds" hitmaker's next album, reports aceshowbiz.com. Cardo revealed the existence of Rihanna's new project while he was discussing his recent involvement in Kendrick Lamar's "untitled unmastered" mixtape. "There's so many records we have been working on that's about to come out. I can't say anything beyond that, but we got a record with Rihanna," he said. "That's all I can say. I can't say anything more, but there's a Rihanna and Cardo record." Asked if it would be his song featuring guest vocals from Rihanna, Cardo replied: "No, no, it's her song. It was for 'Anti', but there's another 'Anti'. I don't know if it's official, but I know we have a record".