Seriously, what is the obsession with this girl?

Almost 600 instagram fan accounts made for her, another 300 YouTube accounts made for her, people curse every boyfriend she has, paparazzi picket fence this girl, fans cry because they cant meet her, people want to look like her and copy her. I wont even go into details about her talents and looks, because I was once someone who admired her. She was ditzy on Victorious which was funny at one point, but it got annoying once she carried it to another show. What is it that make people go crazy over this girl? Same thing can said about the Jenners sisters except Grande actually has talent and she is not a slut. Im guessing 90% of her fan base are teens, because anything accounting for 30 year olds of that percentage would be weird. What is it about this girl that drives everyone wild?