This Girl Became An Instagram Sensation With 1.7 Million Followers But Didn't Know People Could See Her Photos

"What's a follower?" These were the words Kayla Itsines, now a global internet fitness sensation, said when she was told she had reached her first 100 fans on Instagram. Now with 1.7 million followers on Instagram, 915,000 likes on Facebook and 163,000 followers on Twitter, you would never think this social media queen originally thought Instagram was simply an app for storing photos privately. "I didn't even think about it at the time. I used Instagram and had my own blog but, I know this sound...