Those "Four" singing groups from back when

That was very impressive. Well done!

The Four Preps

The Sir Douglas Quintet

The Four Skins, er, oops, that was a band in Boston or was that banned in Boston?

The Night is one of my favourite ever tunes.

ignatz… There was a British Oi! band called The 4-Skins. Although it’s not mentioned in the Wiki article, If my memory serves me correctly, they were playing in Southall, West London in 1979 and their presence helped spark off a riot in which a teacher, Blair Peach died, allegedly at the hands of an elite police unit.