Can anyone identify it please?

I've heard an older song on the radio (realy old) with the chorus "Aha mm ....." by a female singer

anyone know the titel?

I will guess

Viola Wills - Gonna Get Along Without You Now (1979) http://www.youtube.com/watch?v=746lOmgpw74

It has the aha mmm. The song isn't originally hers, but she is one of the singers who had a version that included the aha mmm part.

Thank you a lot this is the song I searched for

Old but very good

You're welcome anytime.