Jennifer Aniston just turned 51 on February 11. The actress is most well-known for her time spent as Rachel on Friends. Obviously, she has had many more roles in addition to this popular television show from the 90s. Since 2010, Jennifer has starred in 18 movies including 'Just Go With It,' 'Dumplin',' and 'The Switch.' No matter what role is your favorite, Jennifer has made a major impact on the entertainment industry, as well as the lives of her fans.