No family members, and I don't think it'll happen.
Though I do catch my brother to be humming Free & Easy.
One of my friends is a huge fan of Inuyasha (no other animes, really) and she likes the songs (probably Shinjitsu no Uta by Do As Infinity the most). But I've showed her many of Ayu's songs since she already sang Dearest and no more words, and she likes her songs. *squee* lol