A mysterious poster has sparked a few rumours!
A poster of Coldplay has been seen in Sao Paulo showing the band, and dated November 22, 1919!
It shows the band in a vintage setting with German philosopher, poet, composer and scholar Friedrich Nietzsche.
The poster turned up at the Paulista metro station in Sao Paulo but was later removed.
Apparently it was not supposed to be put up until Thursday October 17, with many thinking a new single could come out this Friday.
Further to this, many believe it is a clue that a new album is on the way.