As the fun-loving pop star celebrates her 27th birthday on Oct. 25, look back at some of her wackiest photos from Twitter
Oct 21, 2011 at 12:54PM
Yummy recipes, DIY projects, home decor, fashion and more curated by iVillage staffers.
The very dirty truth about fashion internships... DUN DUN @srslytheshow http://t.co/wfewf
Behind-the-scenes pics from iVillage.