While plenty of people have no desire for fame, most teens apparently do. A 2007 survey revealed the top (by far) two life goals for US young adults were to be rich and famous. Another 2007 study by UCLA showed preteens' top desire for their future was to be famous. A 2011 study by Christian Children's Fund reported that in developing countries, about half of ten to twelve year olds want to enter the helping professions (teachers, doctors), but in the western/developed countries, about half want to pursue fame as actors, singers, or fashion designers.
Talented or not, then, about half of your students want to become celebrities.