I do remember the whole bunch of lyrics:
Is it bitter, is it sweet/
I wanna know what love tastes like [Chorus]
Love, love, la-la-la-love/
I wanna know love, oh/
I need to know love.
It was a RMB song (?), with male singer, a little Seal like voice (but not him).
Google does no good and picks the song "I wanna know what love is? I want you to show meeeeeeee" by Foreigner or Mariah Carey.