Some time last week during his nighttime tubby, Sebastian came to understand that if he submerged his ears under water, and sang , that he could hear himself differently than he would above water... So now, we all get to listen to Sebastian singing louder than normal at bath time... I think that this is the sweetest thing because I remember doing something similar as a child... Wonderful acoustics! I also love his song choices... Some of his most frequently sung songs these days are We Wish You A Merry Christmas, Patty Cake and Happy Birthday! Long live tub time!