Demi believes in mermaids!

Demi Lovato isn't shy about her beliefs. The 21 year old pop star reveals that she believes in ghosts, aliens, and... mermaids! "I believe that there could possibly be mermaids," Demi says with a smile. "They are an alien species that live in parts of the Indian Ocean, which we have never explored before. Christopher Columbus had actually seen three mermaids on his way to America," she dishes. Demi would totally have a "Heart Attack" if she saw one!