Russel has some serious pipes!
more than a few years back I was at my friends house (he was buddies with Russell) I was in his living room playing his guitars and unknown to me Jack showed up and was in the room. I was playing over the hills and far away and he started singing the lyrics - His voice is so powerful and he sounded so awesome I nearly fell off the chair and had to stop playing to see who this incredible voice was. My buddy fell down laughing at the look on my face.