Gretchen Stephanie Mendiola Espina (born January 8, 1988, in Quezon City, Philippines) is a Filipino singer and politician who rose to notability after winning Pinoy Idol, an interactive reality-based singing competition.

[4] Espina pursued college in University of the Philippines Diliman campus in Quezon City, with a major in European Languages.

On June 19, 2009, she was re-introduced after months of being away from the limelight due to a throat ailment she had gotten during her stint in Pinoy Idol last year, in the 59th Anniversary Celebration of GMA Network held at the Araneta Coliseum singing medley of songs.

", originally sung and owned by Thor which is the theme song of the drama series Sine Novela: Tinik Sa Dibdib.

In 2010, Espina made her first acting debut in Diva as Debbie Romasanta, Tiffany's (Glaiza de Castro) best friend and personal assistant who helps her to make Sam/Melody's (Regine Velasquez) life miserable.