Barbershop quartet Main Street are quite keen to point out that all the songs traditionally sung from the "good old days" could soon be replaced with modern tunes, because one day even 2015 will be considered the good old days.
That's why, for their performance at this year’s Barbershop Harmony Society's 2015 International Convention, they decided to sing a medley of modern pop songs.
Tracks featured include Bye Bye Bye by *NSync, Oops I Did It Again by Britney Spears, Lady Gaga's Poker Face, and a bit of Michael Jackson.
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