De carrière van Joe Howard wordt belicht, een songwriter die zich aan het begin van de twintigste eeuw opwerkt van armoedzaaier tot een gevierde muzikant op Broadway. Hij verslindt het ene na het andere meisje, maar ziet in koormeisje Katie de ware liefde.
Nee, helaas is I Wonder Who's Kissing Her Now nog niet beschikbaar op Netflix in Nederland.
| Costume & Make-Up | Bonnie Cashin | Costume Design |
| Directing | Lloyd Bacon | Director |
| Writing | Lewis R. Foster | Screenplay |
| Crew | Marion Turk | Additional Dialogue |
| Crew | Hermes Pan | Choreographer |
| Sound | Joseph E. Howard | Songs |
| Sound | William M. Hough | Songs |
| Sound | Frank R. Adams | Songs |
| Sound | George Jessel | Songs |
| Sound | Charles Henderson | Songs |
| Sound | Alfred Newman | Music Director |
| Sound | Charles Henderson | Music Director |
| Sound | Maurice De Packh | Orchestrator |
| Camera | Ernest Palmer | Director of Photography |
| Camera | Natalie Kalmus | Other |
| Camera | Leonard Doss | Other |
| Art | Richard Day | Art Direction |
| Art | Boris Leven | Art Direction |
| Art | Joseph C. Wright | Art Direction |
| Art | Thomas Little | Set Decoration |
| Art | Walter M. Scott | Set Decoration |
| Editing | Louis R. Loeffler | Editor |
| Costume & Make-Up | Charles LeMaire | Costume Supervisor |
| Costume & Make-Up | Ben Nye | Makeup Artist |
| Visual Effects | Fred Sersen | Visual Effects |
| Sound | Arthur von Kirbach | Sound |
| Sound | Roger Heman Sr. | Sound |
| Production | George Jessel | Producer |
| Sound | Edward B. Powell | Orchestrator |
| Production | Raymond A. Klune | Production Manager |
| Art | Don B. Greenwood | Props |
| Art | James Basevi | Art Direction |
| Crew | George Jessel | Additional Writing |
| Crew | Darryl F. Zanuck | Additional Writing |
| Directing | Joseph C. Behm | Assistant Director |