Нашёл 2 млн ответов for 'Smule sing along'.
https://www.smule.com/
https://www-int.smule.com/
https://web.smule.com/
https://play.google.com/store/apps/details?id=com.smule.singandroid&hl=en_US&gl=US
https://www.facebook.com/Smule
https://www.facebook.com/SmuleSing
https://www.commonsensemedia.org/app-reviews/smule-the-1-singing-app
https://mobile.softpedia.com/apk/sing/
https://twitter.com/smule
https://singdownloader.com/