Elton John to I Wonder Who's Kissing Her Now in 5 Steps
- Elton John is one of the many artists that recorded Makin' Whoopee!
- Makin' Whoopee! was written by Gus Kahn
- Gus Kahn wrote It Had to Be You
- It Had to Be You was arranged by Gordon Jenkins
- Gordon Jenkins arranged I Wonder Who's Kissing Her Now