AJ, in her name, stands for Amanda Joy. So, Amanda Joy Michalka is an American voice artist, actress, music, and songwriter. She is the one half of the duo of music AJ & Aly, briefly known as violet78, alongside Aly Michalka, her sister. She, as an actress, has appeared in several movies such as Secretariat, The Bones Lovely, Unplugged Grace, 8 Super, Girls Support, and Way For Weepah Now. She worked as a voice-over artist for the Netflix adventure animated series The Power Princesses and She-Ra for the lead role Catra.