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 golondrina "La golondrina" (English: "The Swallow") is a song written in 1862 by Mexican physician Narciso Serradell Sevilla (1843-1910), who at the time was exiled to France due to the French intervention in Mexico. The Spanish lyrics uses the image of a migrating swallow to evoke sentiments of longing for the homeland. It became the signature song of the exiled Mexicans. The song was recorded in 1906 by Señor Francisco. A guitar instrumental was recorded by Chet Atkins in 1955. The song has also been recorded by Caterina Valente (1959), Nat King Cole (1962), Plácido Domingo (1984), Flaco Jiménez (1992, instrumental), and Caetano Veloso (1994).