More and more, celebrities are testing the waters of the art world with their own art endeavors. James Franco alone has created and participated in various projects as well as curated and mediated other artists' works. In March, Tilda Swinton slept in a glass box in MoMA as part of a performance piece. Chris Brown made headlines with his bothersome graffiti. And the biggest celebrity art project in recent history was probably Jay-Z's performance at Pace Gallery. But these aren't the only celebrities who have tried their hands at art. From Jim Carrey to Bam Margera to Sylvester Stallone, here's our list of The Most Unlikely Celebrity Artists.