A song that is sometimes used in weddings?

I don't know. But it's by a girl. The meoldy is very soothing. It's like "dun dun, dada dun dun." id no't know. Lol. It's a the tip of my tongue!! But it was used in my cousin's wedding. It almost sounds like My Heart Will Go On by Celine Dion. A melody similar to hers.