They're taking on the challenge to mark the launch of their second album, Beside The Ones We Love.
The band will kick off on Monday, May 4th, by playing at The Old Blue Last in Shoreditch, London, at 12.30pm before playing The Black Heart, in Camden, at 2.30pm.
Next up is The Windmill, in Brixton, at 4.30pm, then the Cricketers in Kingston at 8pm before finishing off at The Star in Guildford at 10pm.
A full line-up of bands will feature at each venue.
Frontman Josh McKeown told RealSoundsOK: "Everything about this band revolves around us pushing ourselves and this insane day will encapsulate our approach.
"It is by far the most ambitious challenge we've ever set ourselves and is undoubtedly one of the hardest things we'll ever try to pull off as a band. That said, it's going to be so much fun, so get your Oyster cards topped up and we'll see you there."
For more info head to facebook.com/wearepalmreader