In 2011, she starred in the Philippine adaptation of the Korean series, "Green Rose". where she starred again with Jericho Rosales. She also topbilled the film "Who's That Girl?", which served as her reunion movie with Luis Manzano. Although a confessed non-singer, Curtis launched her debut album, "Annebisyosa", under Viva Records, on 25 September 2011. She asked for her bosses to release her album, as it is one of her dreams. She described her album as "super fun" and "not serious." She also stated that people should listen at their own risk. In October 2011, the album reached the gold status, as it sold 10,000 copies. Curtis cried while receiving the gold record award. The album reached the Platinum status in December 2011. On 28 September 2011, her film "No Other Woman", which also starred Derek Ramsay and Cristine Reyes, was released. It grossed Php 100 million in five days. The film became the highest-grossing film in the Philippines, until it was beaten by "The Unkabogable Praybeyt Benjamin". Her performance in the film lead her and co-star Cristine Reyes to be recognised as the Box Office Queens at the Guillermo Mendoza Memorial Foundation's Box-Office Entertainment Awards. She also won as the Pinakapasadong Aktres at the Gawad Pasado Awards and received a FAMAS Award for Best Actress. At PMPC Star Awards for Movies, she was nominated as Movie Actress of the Year.