The guitar may be here for effect and cute appeal (could he get any smaller and the instrument any bigger?) but Hero Ha's talent for song is definitely at play. This Korean 5-year-old started singing at the age of two and is said to now know almost every Beatles song. So here he is, perched high atop his parent's couch, singing loud and proud. Yeah, so he's got no pants on. It's a rock-star thing.