Renae Michalka, (born March 25, 1989) often credited as Aly, is an American actress, singer-songwriter, guitarist, and pianist. She is perhaps best known for her role as Keely Teslow in the Disney Channel Original Series, Phil of the Future and as Taylor Callum in the Disney Channel Original Movie Cow Belles. She is also known as one-half of the musical duo Aly & AJ with her sister Amanda Michalka. In July 2007, their album, Insomniatic, hit stores, featuring the American top 20 hit single, "Potential Breakup Song". Aside from this, the two are working on a new album, to be released in the summer of 2009
