My friend has an adorable problem. Her 22 month old requests songs for her and her husband to sing at bedtime ("wheels bus sing, " "star twinkle sing, " etc. ) For a week now he has been requesting what sounds like "smile sing" or "my-oh sing, " and they have no idea what song he's talking about! They've tried every song they can think of with smile in the title or lyrics and even asked his daycare if there's a song they sing there, but no luck! Every song they try is met with, "No. Smile sing. " They just want to crack the case! Anybody have a guess?