What is yo no se manana?

"Yo No Se Mañana" is a song by Puerto Rican singer and songwriter Luis Enrique. It was released in 2009 as the lead single from his album "Ciclos." The song is a salsa ballad that talks about living in the moment and not worrying about the future. It was a commercial success, reaching the top of the Billboard Tropical Songs chart and receiving critical acclaim for its emotional lyrics and Luis Enrique's vocal delivery. The song has since become a classic in the Latin music genre and is often performed at concerts and events.