It might be what is known as an "art bomb" where local artists put up new art in the dead of night.
That appears to be the case with a rendition of Mona Lisa on the cement of an Uptown parking lot that has popped up overnight.
The one major difference with this Mona Lisa is she has a nose ring.
You can check it out in person in behind the RBC parking lot on Charlotte Street or by walking up the laneway on Germain Street between Princess and King Streets.