Mark Rozzo to It Had to Be You in 11 Steps
- Mark Rozzo recorded Good Old Desk
- Good Old Desk was sung by Harry Nilsson
- Harry Nilsson wrote The Tree
- The Tree was arranged by George Tipton
- George Tipton arranged Open Your Window
- Open Your Window was recorded by Ella Fitzgerald
- Ella Fitzgerald is one of the many artists that recorded Makin' Whoopee!
- Makin' Whoopee! was produced by Derek Taylor
- Derek Taylor produced I Wonder Who's Kissing Her Now
- I Wonder Who's Kissing Her Now was arranged by Gordon Jenkins
- Gordon Jenkins arranged It Had to Be You