feh-LEES koom-play-AH-nohs tay AH-moh
Here's a breakdown:
* Feliz: feh-LEES (with the "e" in "feh" pronounced like the "e" in "met")
* Cumpleaños: koom-play-AH-nohs (the "ñ" is pronounced like "ny" in "canyon")
* Te: tay (like the "e" in "bet")
* Amo: AH-moh (the "o" is pronounced like the "o" in "go")
So the full pronunciation is: feh-LEES koom-play-AH-nohs tay AH-moh
This translates to "Happy birthday I love you" in English.