No Bueno

Mariachi singer from Mexico City recently received the shock of his life during a live performance. An unidentified man hired the mariachi band to serenade his girlfriend under his apartment balcony. The mariachi band started playing before the woman emerged on the terrace. The lead singer was stunned because the man’s girlfriend was his wife. He had no idea she was cheating on him.

How do you say OOPS! in spanish?