In front of the hotel on the strip, you'll find a dude playing an electric violin (street performer). The guy is our age, looks like he's a music student, really talented. Stopped Leezel and I in our tracks while we were walking. We listened to him for at least 10 minutes! Look out for him.
If you haven't seen the water show up close, it's definitely worth slotting some time for. Seeing pictures or video doesn't convey the magnitude of the show.
The Cirque show "Iris" is amazing. All the wonders/theatrics of a terrific Cirque show; set against the classic glamorous hollywood back drop of 1940's (my interpretation)