The 25-year-old Florence and the Machine frontwoman donned a '50s-inspired black bikini and a red swimming cap while vacationing in the South American country Tuesday. The "What the Water Gave Me" singer, who split with literary editor Stuart Hammond in 2011, was also photographed kissing a new mystery man on the beach.
"I have a tendency to lose weight -- everyone in my family has it, my dad's really skinny," Welch explained. "We get too distracted and forget about eating. People are always encouraging me to eat more."