LOS ANGELES (AP) — Emilio Estefan says he’s written a song called “We’re All Mexican” to celebrate the achievements of Hispanic people in the United States. Estefan writes in Spanish on his Facebook page the song has a message of unity. He tells Billboard magazine the song will feature his wife, Gloria Estefan, as well as Carlos Santana and Wyclef Jean. “We’re All Mexican” will come out as part of Hispanic Heritage Month, which begins tomorrow.