Ada Mae Johnson is an American pornographic actress. In the majority of the films in which she appeared, she used the stage name Violet Blue, until a 2007 lawsuit brought by author and sex educator Violet Blue charged that Johnson had adopted the author's name and persona. With the lawsuit pending, Johnson changed her stage name to Violetta Blue.

Johnson was born March 27, 1977 in Aberdeen, Washington, raised in Pacific Beach, Washington. She claims that she began having sexual experiences at around age 7, and that she had sexual intercourse for the first time at age 13, while her parents were out playing bingo. She stated that she was "one of the latest ones" in her school to do so. Johnson was a cheerleader during her four years of high school. She began studying magick and witchcraft at the age of 16, and was first initiated into a coven at the age of 19.

Johnson attended Grays Harbor College in Aberdeen, WA, where she began modeling nude for an evening life drawing class. She then enrolled at The Evergreen State College, focusing on environmental science. She subsequently dropped out and moved to Las Vegas, Nevada, where she began working as a stripper.

For six months, Johnson worked at a strip club called Tally Ho. Johnson then moved to Salt Lake City, Utah, where she continued working as a stripper, and she enrolled in beauty school. She was working at a club called the The Million Dollar Saloon, when she was noticed by a pornography talent agent named Roy Garcia. In 2000, Garcia convinced Johnson to move to Southern California to pursue nude modeling. Johnson eventually began appearing in pornographic films as "Violet Blue".

In April of 2005, Johnson announced that in May, she would return to her home state of Washington, and that her husband would stay in Los Angeles to continue working for pornographer Stoney Curtis. Her mother had bought a house for Johnson to live in.

In October 2007, author Violet Blue filed a lawsuit against Johnson, accusing her of trademark violation and dilution, as well as unfair business practices. The lawsuit alleges that Johnson adopted author Blue's persona and trademarked name. Following this, Johnson announced that she had changed her stage name to Violetta Blue, although the name Violet Blue remains on her web page and MySpace.