Alyson Renae "Aly" Michalka born March 25, 1989, often credited as Aly, is an American actress, singer-songwriter, and musician. Aly Michalka gained fame for playing the role of Marti Perkins in the CW television drama Hellcats. She was also known for her roles as Keely Teslow in the Disney Channel original series Phil of the Future, Charlotte Barnes in the film Bandslam, Taylor Callum in the Disney Channel Original Movie Cow Belles, Rhiannon Abernathy in the Golden Globe-nominated teen film Easy A and as Tracy Morgan in the thriller The Roommate. She is also known as one-half of the musical duo 78violet (formerly Aly & AJ) with her sister Amanda Michalka.
