if bogota is colombia's financial heart, then cali is its shaking hips. people here like their music. ♪ my tejo buddies, mario and will, are the founders of a collective called on the tropica. their idea was to reinterpret the tropical music heritage of colombia. what often sounds like salsa in style is actually cumbia. ♪ if there's one type of music that can be classified as distinctly colombian, this is it. ♪ >> cumbia draws on the music of the african and indigenous european mix that makes up the country, so will and mario