• Carl's Jr.

Carl's Jr. (Photo : Reuters)

Charlotte McKinney, 21, is the latest Burger Babe, a title used to be held by Kate Upton, Paris Hilton, Katherine Webb, Emily Ratajkowski and Victoria's Secret model  Nina Agdal.

On Feb. 1, Sunday, more than 114 million people watched as McKinney chomp down on a burger in the 2015 Carl's Jr. Super Bowl commercial with the tagline "All Natural."

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Carl's Jr. has been known for its sultry ads. For the 2015 Super Bowl, the burger chain shows a scantily clad McKinney just like the new grass-fed-beef burger from Carl's Jr.

Compared to Agdal, who was the Burger Babe of the 2014 Carl's Jr. Super Bowl ad, McKinney is relatively unknown to the general public. 

Born in Orlando, Florida, McKinney, McKinney dropped out of high school when she was 17 due to dyslexia and bullying and is now based in Los Angeles, Business Insider has learned.

McKinney told the Daily Mail that the girls in high school were rude. She said they would call her "whore, slut, fake boobs."

"It was brutal, pretty brutal," McKinney said. "But it was hard for me, when I was 14 I was growing into my body and I had these boobs, I didn't know what to do with them! But I just knew I was above it all, I have an older sister, Garland, who has my back, and these girls didn't matter."

Struggling with dyslexia, McKinney said it was such a challenge not being able to read when she was a child until she was a lot older and was behind in her classes.

Watch Burger Babe McKinney's 2015 Carl's Jr. Super Bowl Ad here: