Ok so that's weird. I was just showing this to my sister earlier today and noticed that there was no Listen, just Beatbox.

Naturally I was delighted that they recognised the meme ... but, talk about a race condition. I thought this was nothing new and here were are, a 48 minute old HN submission whereas I was showing my sister probably 50 minutes ago.

Slightly related, the first hit on google for "google beatbox" is translate.google.com