Yogurt Burst Cherrios

If it's the same ad I'm thinking of ...

Is it the one where it's lame-o karaoke? A funky girl sings and then a tall guy sings against a white background ... and the lyrics are shown across the bottom?

If that's the one ...

Then I believe it's ...

Herman's Hermits - "Into Something Good"

Right or wrong ...
There you go.
That is the commercial...and the song.
Lame commercial, i know. But the song got stuck in my head.