The festival's livestream kicks off with Karol G's set Feb. 19.
Fher Olvera underwent surgery and his recovery “has been slower than anticipated,” according to a press statement.
The Argentine singer-songwriter joins the list of stars who will participate in the Chilean festival.
The list of countries and artists selected for the Chilean competition includes veteran rock band Los Rabanes from Panama.
Tickets are on sale now for the Chilean event, which is scheduled for Feb. 19-24.
