@ladygaga: Happy Birthday ARTPOP. Thanku 4 filling my life with a colorful world. Gazing balls, seashell girls, creative clowns ladyxgaga.com @ladygaga: As the artRave ends we will celebrate ARTPOP. To be an artist all you need is a canvas & a paintbrush. Nothing else. #thankyougaga #artpop #anniversaryofartpop #gaga #gagaontumblr #happybirtdayartpopyoumakeourheartsstop