The InStyle Hairstyle Try-On App iPad application now has over 300 celebrity hairstyles and we want you to decide which styles to add next! Would you like to see yourself in Selena Gomez's curls or Nicki Minaj's edgy bob? How about Ashley Greene's dark tresses or Rachel McAdams' old Hollywood look? Help us pick the next styles for the app by voting for your favorites on Facebook. Head over to Facebook now, check out 20 great cuts from summer so far, and click "like" to vote for your top picks. The winning styles will be chosen on Friday and available on the iPad in July, so download the iPad app to see who made cut!