Who is che guevera’s friend who accompanies him in his road  trip by motorcycle as described  in a jorge drexlers song?
Al otro lado del río "Al otro lado del río" (English: On the Other Side of the River ) is a song, written and performed by Uruguayan singer Jorge Drexler for the film "The Motorcycle Diaries" (2004). Besides the film's soundtrack, it can also be found in Drexler's seventh album "Eco"; in the soundtrack the bassist Jeff Eckels also performed.
La Camisa Negra "La Camisa Negra" (English: "The Black shirt" ) is a Spanish rock song written by Colombian singer-songwriter Octavio Mesa and recorded by Juanes for his third studio album "Mi Sangre". In Latin America, the track was released in 2005 as the third single from "Mi Sangre", and in Europe, it was released in 2006 as the album's lead single.