Its recorded on Fisher Price toy TV remote control. That's what my Japanese wife says but she doesn't speak slowly so I can't be sure. I have no hits on Google search so it that right? If not what is the correct name?
It's a children's song called "むすんでひらいて" (musunde hiraite)
むすぶ(musubu)＝tie a knot ("make a fist")
The song title in English is "open your hand and close your hand"
P.S. Tho I do like your song title! "steal and open" :D