Conversation so far:
what led martin to try and crossover?
After receiving commercial success throughout Asia, Europe, and Latin America, Martin prepared his first English album in 1999.
Whta was the first son he released?
The first and most prominent single was "Livin' la Vida Loca".
Did he feature anyone on any songs?
Madonna on the Spanish-English duet "Be Careful (Cuidado con mi Corazon).

Question: Who else did he feature on his songs?
Self-contained rewrite: Who else did Ricky Martin feature on his songs besides Madonna?