I think it's a lovely name and it would be very cute on a little girl these days. I actually know of a little girl with this name. It's also my DH's grandmothers name and the name of one of his cousins, but with the
Adelle spelling. We also have a niece who's mn is
Adelle and one of DH's other cousins used it as a mn for a DD of hers too. Needless to say, I wouldn't use it, as it's been used so much already! I may become more popular because of the singer, I guess time will tell.