Does Anyone Remember "Rondo" choclate bars

[Zephyer]

Does anyone remember the "Rondo" choclate bar? It was a coconut/macroon choclate bar with a blue wrapper with a orange/yellow writing.

I vaguely remember an advert for the choclate where a soprano would sing "Rondoooooooo!" at a high pitch and shatter a glass! I loved this bar and ate a whole box over a week in my childhood at a shop at a caravan park in Ireland!