By Grace Gavilanes
Updated Mar 27, 2014 @ 8:15 am
Mariah Carey's Best Beauty Moments
Credit: Dimitrios Kambouris/WireImage, Ron Galella/WireImage

Happy Birthday, Mariah Carey! The Grammy award-winning singer, who turns 44 today, is a force to be reckoned with—both as a performer and InStyle celebrity; Carey has acted as both cover girl and, most recently, as our first-ever Social Media Award winner, raking in a record-breaking number of votes for her adorable litter of puppies in the Most Stylish Pet category.