How Long Has This Been Going On? Lyrics
| Song | How Long Has This Been Going On? |
| Artist | George Gershwin |
| Album | Gershwin Songbook, Vol. 1 |
YouTube Results (More on YouTube)
| Song | How Long Has This Been Going On? |
| Artist | George Gershwin |
| Album | Gershwin Songbook, Vol. 1 |