2 Decades of People's "Most Beautiful" - Jennifer Lopez

Singer, actress and "American Idol" judge Jennifer Lopez has been named People Magazine's "Most Beautiful" person of 2011. The 41-year-old mother-of-twins joins an illustrious line of cover people. - Credit: Alberto E. Rodriguez/Getty Images for Extra

Lopez poses for photographers at the presentation of her album "On the 6," April 28, 1999, in Mexico City. - Credit: AP

Lopez performs during the 1999 Billboard Music Awards at the MGM Grand in Las Vegas, Dec. 8, 1999. - Credit: AP

Lopez and Sean "Puffy" Combs pose backstage at the 42nd Grammy Awards in Los Angeles, Feb. 23, 2000. Her handkerchief dress was the talk of the nation the following day.

Lopez arrives for the United Kingdom premiere of her latest movie "Maid In Manhattan," Feb. 26, 2003, at a cinema in Leicester Square, London. - Credit: AP