The Spanish-language single "Causa y Efecto" marked a return to the charts for Rubio in 2009, showcasing her signature blend of pop and Latin rhythms.
- "Causa y Efecto" was released on March 30, 2009, by Universal Music Spain S.L.
- The single was a commercial success in several Latin American countries and Spain.
- The song was co-written by Paulina Rubio herself, alongside Julio Reyes Copello and Fernando Garibay.
Mexican pop singer Paulina Rubio is one of the best-selling Latin artists of all time. In 2009, she was an established international star, releasing music across genres like pop and dance.
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