I was always a little insecure. I had brothers that played football, so I was just a straight-up tomboy for a minute. I didn't know makeup and hair stuff. My friends had to tell me what a straightener was. I didn't know fashion or any of that until the label gave me a stylist.

A lot of people think I came out of nowhere. When you start as a songwriter, nobody knows who you are. I met the guy who wrote 'Yeah' by Usher, which was a huge smash, and nobody knew who he was.

After two years in the songwriting world, I wrote 'All About That Bass.' L.A. Reid heard it and signed me as an artist.

When I was 13, I told my dad I needed to record myself because I sounded awesome, even though I didn't. By 18, I was a lot better. Then I got a publishing deal, so I was writing songs for other people professionally.

I don't read books. I read 'On the Road' in high school, and that was awesome, so I guess that's my favorite book. 'To Kill a Mockingbird,' even though I didn't read it, that's the greatest story. SparkNotes came in when I was in high school, and that was the greatest invention.