Venezuelan migrant and rap singer Alfonso Mendoza aka "Alca", 25, prepares to take a bus for his performance in Barranquilla, Colombia on September 28, 2018. - Alca -who arrived in Colombia nine months ago due to the crisis in his country- was born without legs and changed the wheelchair for a skateboard. At present, he is an example of overcoming adversity, practicing extreme sports, singing rap and giving conferences to young people in vulnerable situations. (Photo by Raul ARBOLEDA / AFP)