I got it for you! It is Winter Roberts with "Sha La La In My Life"
watch an illegally pirated version (as usually there) on YouTube:
> Need Song: "I need a little shalala in my life"
> This is driving me crazy. Today I heard it again on the radio and each time it plays they don't tell the artist!
> So please, if anyone knows who sings this song!
> It was played on BFBS Radio 1 (British Forces Broadcasting Service)
> Refrain: "I need a little shalalala in my life"
> Another bit: "... running overdrive ..."