Conversation so far:
What was Iglesias doing between 2002 and 04?
In 2002, Iglesias decided to release a fourth Spanish-language album titled Quizas.
How did the album Quizas do ?
The album debuted at number twelve on the Billboard 200 albums chart, the highest placement of a Spanish language album on the chart at that period.
Did the album do well abroad?
His last single from the album, "Para Que La Vida", reached a million spins on U.S.
radio, the only Spanish language song to do so.
Did Iglesias release another album during this time period?
By 2003 Iglesias released his seventh album, which he called 7, the second to be co-written by Iglesias.

Question: Who co-wrote the album with Iglesias?
Self-contained rewrite: Who co-wrote the album Quizas with Enrique Iglesias?