I like to sing to Harmanies babes. It sooths them and I can hear there little purrs. I think its so cute. I sing them Nora Jones's music a lot. Harmanie loves Nora Jones. So She especially loves it! lol! I stroke their cute little heads and they purr even louder. They love the song I don't know Why I didn't come and Sunrise. That and Little girl. SO CUTE