Amanda Michalka is an American singer and actress. She began her career as a model and is one-half of the duo Aly and AJ. Michalka has appeared in the films Cow Belles, Secretariat, Support the Girls, and Expecting Amish, and the television series Schooled. She produced the film Weepah Way for Now, and has made music contributions including her popular single It's Who You Are.