The King of Rock & Roll, Elvis Presley, was a pedophile and had girlfriends as young as 14 years old when he was on tour at the age of 22. The shocking revelation was made in a new book titled 'Elvis Presley: A Southern Life.'

The author of the book, Joel Williamson, has said that the singer kept a group of three 14-year-old girls with him on tour who were up "for pillow fights, tickling, kissing and cuddling," according to Vice.

'Elvis Presley: A Southern Life' also mentions multiple episodes of Elvis "engaging young girls to perform for him by mud wrestling in white panties, and spying on couples having sex in one of his Hollywood houses by installing a two-way mirror in a bathroom."

Elvis Presley and Joan O'Brien play nurse and patient in director Norman Taurog's film 'It Happened At The World's Fair' (Getty Images)

Williamson, in his book, also alleges that the rock star cheated on his 15-year-old girlfriend Dixie Locke when he was 19.

Elvis reportedly slept with a fan while he was in Louisiana in 1954. The condom broke in the act. The next morning, Elvis informed his friends that he brought the girl to the emergency room and left her there to get a douche.

The book claims that he called his then-girlfriend Dixie Locke on her phone multiple times in desperation. Elvis and Dixie dated between 1953 and October 1955.

The book alleges that Elvis was engaged in romantic connections with a string of underage women, including his wife Priscilla. The couple met in Bad Nauheim, Germany during his stint in the army when Priscilla was just 14 years old.

The book claims that Elvis, on their first night, "made love to her in every way short of penetration. It was as if Priscilla's virginity was another thing that Elvis strangely and sorely needed to maintain."

Elvis Presley cutting the six-tier wedding cake with his bride Priscilla Beaulieu at the Aladdin Hotel, Las Vegas. (Photo by Keystone/Getty Images)

The author further claims that when Elvis' mother Gladys died in 1958, his desire for companionship in bed became stronger. "There had been a river of sex before, now there was a flood," the book states, adding that the music icon, from 1958 to 1977, always needed a woman or girl in his bed.

The new book also claims that Elvis was "obsessed with virginity," and slept with two 26-year-old self-proclaimed virgins in August 1970.

Reports state that when Priscilla arrived in Memphis to tell him she was no longer in love with him and was separating, he flew into a rage and raped her.

"Thus, the love affair between Elvis and Priscilla ended, ignominiously, with spousal rape," Williamson writes in his book.