Lindsay Lohan and Avril Lavigne Fight

It's America vs. Canada in a young celebrity showdown, as word of a bitter battle between Lindsay Lohan and Avril Lavigne is spreading throughout the entertainment world. As rumor has it, Lindsay had a blowout with the Canadian rocker-actress at the infamous Chateau Marmont in Hollywood -- a hotspot for ridiculous celebrity shenanigans. Apparently, the rivalry began when Lavigne blasted Lohan for being "fake" and "a loser" when the 'Mean Girls' star tried to approach her table.