Amanda Michalka

Amanda also known as AJ, is an American actress, singer-songwriter, and instrumentalist. She used to be a model prior to becoming an actress, and is best known as one-half of the duo 78violet (formerly Aly & AJ) with her sister, Alyson Michalka.

Amanda lived and grew up in Seattle, Washington and Southern California with her sister Alyson Michalka. Amanda has been playing the piano since she was four and started playing the guitar in her early teens. She started acting when she was seven years old, mostly in church play productions.

In 2006, Amanda dated Joe Jonas of pop boy band the Jonas Brothers, as confirmed by Michalka on her MySpace blog.

AJ was in a number of musical productions at her school in Milwaukee as a young adult. AJ plays a variety of instruments such as acoustic guitar, electric guitar, piano, and bongos. She was a model for catalogs. In March 2006, she made her Disney Channel debut in the Disney Channel Original Movie Cow Belles, as "Courtney Callum", along with sister Aly, as "Taylor Callum". .She has also made appearances on shows such as Oliver Beene, Six Feet Under, The Guardian, and General Hospital.She has also appeared with her sister, Aly, in the MTV movie, Super Sweet 16: The Movie.