The Croc on The Masked Singer is Nick Carter.
Nick Carter is a well-known American musician, singer, songwriter, and actor. He is best recognized as a member of the highly successful vocal group the Backstreet Boys. Throughout his career, he has also pursued a solo music career and participated in various television shows.
His identity as the Crocodile contestant was revealed during The Masked Singer Season 4. The reference video explicitly states, "The Crocodile Is Revealed As Nick Carter". During the reveal moment on the show, he was identified as the superstar recording artist, with a host also referring to him as "the other nc nick carter".
