Gilberto Gil, pictured here on the cover of Luar (A Gente Precisa Ver o Luar), is one of the many artists we listen to this week to understand the concept of "saudade." Courtesy of the artist hide caption

itoggle caption Courtesy of the artist

Mexican actor and director Gael García Bernal. MIGUEL MEDINA/AFP/Getty Images hide caption

itoggle caption MIGUEL MEDINA/AFP/Getty Images

Bebel Gilberto is one of many new artists re-interpreting the songs of Tropicalia on Red Hot Rio 2. courtesy of the artist hide caption

itoggle caption courtesy of the artist