The new five pound note has a secret power - it can play vinyl.
That's because it's made of polymer, which is a type of plastic.
Basically it acts like the stylus on a record player which transmits the sound from the vinyl to the speakers.
Newsbeat tried it out to see how well it worked. Pretty well, it turns out...
Lots of other people have been demonstrating the new £5 note playing music, including Michael on YouTube with Abba track Money, Money, Money.
But did you know that you can also play a record with your finger nail?
Here's a demonstration on YouTube of someone using their false nail to "play" music.
Admittedly is does sound like it was recorded in about the 1940s but it works.
Someone on Newsbeat's Facebook page has even suggested that you can play a record with the open corner of a crisp packet, which they also say acts as a speaker.
Crisp packets are generally made of a metallised plastic film, so it's possible.
But lots of Newsbeat's Facebook fans warn though that using things like banknotes and finger nails to play vinyl could damage your records.
And experts say you shouldn't put your fingers or hands on your vinyl because it transfers oil on to the record, which in turn attracts dust and affects the sound.
In its different forms, polymers are used in products like polyethene, the non-stick coatings for pans, waterproofing on clothing and perspex.
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