Adam LambertAdam Lambert's crazy pants American Music Awards appearance all makes a little more sense to us after hearing his interview with the Morning Jolt's Larry Flick on Sirius radio, where Lambert admits he suffered from an ugly duckling complex because he used to be quite the fatty.

"I suffered from a little bit of an ugly duckling complex in my early twenties. When I was in high school I was 250 pounds and that creates some stuff...some body image stuff, some confidence issues and I got a lot of my confidence from the validation I got as a performer," Lambert said. Watch the Interview Below