The Aerosmith star's actress daughter, Liv Tyler, can't believe her son Milo is so into the music of Freddie Mercury and Brian May.
She says, "He knows, like, every single word to every Queen song. He'll sit in the back of the car and he mouths along with a real passion.
"He knows every word to Bohemian Rhapsody, to the point that the other night I woke him up in the middle of the night to go to the bathroom, just in case, and he sat upright in bed and said, 'Beelzebub has a devil put aside for me...' and then he, like, laid back down and went back to sleep."
Milo, six, has quite the rock background - as well as being Steven Tyler's grandson he is the son of British rocker Royston Langdon.