music to your ears
US /ˈmjuːzɪk tu jʊər ɪərz/
UK /ˈmjuːzɪk tu jʊər ɪərz/

1.
something that you are pleased to hear
:
•
When she said she would marry me, it was music to my ears.
•
The news of their success was music to the ears of their investors.