Stars for a Season

When Lola Muñoz says that she's 2,500 years old, you can't help but think that she's looking good for her age. Then the Spanish singer points at her sister Lucia: "She is 1,765 ... and I'm sure I was a bird at one time." Yes, there's the confirmation: Lola Muñoz is clearly bonkers.

Which is just what her native Spain — and much of the rest of the world — seems to love. Lola, Lucia and their older sister Pilar — all twentysomethings, if you don't count their past lives — are collectively known as Las Ketchup. Their...