In July 2007 , Cerati participated in the Live Earth Festival in Hamburg Germany , alongside Shakira . Besides working with Shakira , Cerati contributed to , Argentinian producer , musician , and two time Oscar winner , Gustavo Santaolla 's album '' Mar Dulce '' ( " Sweet Sea " ) . Cerati sang on " El Mareo " the second single on Santaolalla 's '' Mar Dulce '' which was recorded at Electric Lady Studios in New York City . In 2008 , Cerati released a DVD version of '' Ahí Vamos '' and performed in various festivals throughout Latin America alongside , Shakira , Fito Páez , and Gustavo Santaolalla
Live Earth Festival
Live Earth (2007 concert)
Gustavo Cerati