Okay, these clips are each only less than a minute each so please humor me.
Steve is a barbershop singer and has been for almost his entire life. I have joked in the past that I fell in love with his voice a year before I fell in love with him. It really is gorgeous. He has been playing a barbershop CD of kids songs in the car for them whenever he drives them home from the babysitter's (several times a week) and the kids are totally into it. Noah has inherited the voice and Aaron is finally starting to show signs of being able to actually carry a tune. Aaron talked late, which is one of the reasons I like his version of the song. This song is one of the songs from the CD and the kids are both singing it all the time. Enjoy the lyric changes that they both display.
A few disclaimers: wait for the second verse from Aaron...it truly shows his creative lyrics.
I dare you to listen to these without laughing...if you can, you're a better parent than I.
Also, they are both standing on the trampoline, thus the bouncing.
In Noah's version, listen for Daddy attempting harmony in the background and Aaron belting out the high note with him