Elton John thinks Donald Trump is one funny guy.

While speaking to Variety during the Toronto Film Festival, the Rock and Roll Hall of Famer said he couldnt help but laugh upon learning how his song, Rocket Man, inspired Trumps favorite nickname for North Koreas Kim Jong Un .

During his time in office, Trump took to calling Kim Little Rocket Man, a nod to the Supreme Leaders love of launching aerial weapons and his frequent threats of atomic action.

And while Trumps joke did not land with North Koreans, who once told the media the U.S. president must be senile to think such a slight was appropriate, John said the sobriquet sent him over the moon.

I laughed, I thought that was brilliant, the famous pianist told Variety. I just thought, Good on you, Donald.