IDK - Harry Potter/ Glee/ Doctor Who/ One Direction fanfic

Aria Morah, Carly Gerrard and Tulip Wens are all very different girls. Aria is very wealthy and is muggle born. She gets her mysterious letter from Hogwarts and doesn't think much, for a muggle born. But it's hard to get excited about things when you're depressed. See, Aria was probably the loneliest girl in the universe. Now, Carly was a half blood. All her life she knew that one day she would get accepted to Hogwarts because her father was a wizard. But if Carly's being honest she doesn't like her life at all. She may be popular, pretty, fit, rich, but she hates her life. Her annoying sister, Norah is always getting the house dirty, her dad left her when she was 4, and Norah was just a baby. And Tulip is best friends with Carly, and a half blood as well. Tulip thinks she's all that, but she's not. She's mean, poor, and unclean, which Carly hates. Find out what happens when they meet (spoilers!), and go to Hogwarts.