Addressing their relationship, the Canadian-born star called him a “beautiful man”.
The star revealed that when his oldest son Noah was battling liver cancer Elton would always check up on the singer and his child.
The Grammy winner told Magic Radio Breakfast: “I didn’t know him and he called me every single Sunday. Every single Sunday he would call to tell me that he and David were praying for me and that they loved us and would send toys.
“That’s who he is, that’s who he really is, so Happy Birthday Sir Elton, thank you.”