With her lion’s mane of theatrically red hair and strikingly pretty, elfin features, Esther O’Connor looks decidedly more otherworldly than your average pop-folk-rock princess. It only takes one song to be a star and in “Lost Innocence” she has a sure-fire hit. Well, sure-fire, given a realistic marketing budget. You’ve got to have heard of her before you can buy it, or something like that. And therein lies a familiar tale we will come on to shortly.