"Tu Eres Mi Luz" (Eng.: You Are My Light) is the title of the second and last single released from the album Lipstick by Mexican singer Alejandra Guzmán in 2004. The song was written by Loris Ceroni, Ettore Grenci, Alejandra Guzmán, Ximena Muñoz and Marlow Rosado. This single was a little more successful than the first one, because this ballad was more radio-friendly. The video features the singer performing on a theater with no audience and with many lights pointing at her.