''Amar Sin Mentiras'' is a latin pop album by Marc Anthony released in 2004. It also features the vocals of Jennifer López. Andrew Synowieck (electric guitar), Julio Reyes (piano), Guillermo Vadala (bass guitar), Daniel Avila (drums), Juan Jose "Chaqueno" Martinez, Eduardo Avena (percussion), Alex Batista, Claudio Ledda, Diana Pereyra, Ana Karfi, Dorita, Chavez, Vicky Echeverri, Jose Luis Pagan (background vocals). It won Best Latin Pop Album at the 2005 Grammy Awards. ''Ahora Quien'' reached #1 on Hot Latin Tracks in 2004. - Wikipedia