Diana Ross' famed and remarkable career, spanning four decades, has resulted in major awards and accolades and music history milestones. She is a consummate performer, as well as one of the most iconic female singers of all time and one of the most prominent women in popular music history and in the pop culture of the 20th century. Diana Ross' international achievements were acknowledged by the prestigious Kennedy Center Honors in 2007. The honor celebrated her lustrous career of excellence in music, film, television and theatre, as well as her cultural influences, humanitarian work and contributions to American culture. Career milestones include induction into the Rock & Roll Hall of Fame, The Grammys Life Time Achievement Award, the Songwriter's Hall of Fame Awards, The National Academy of Recording Arts & Sciences Hero Award, the NAACP Entertainer Award, Billboard Awards Female Entertainer of the Century and an International LIfetime Achievement nod on the World Music Awards. The icon is forever cemented in history with two stars on the Hollywood Walk of Fame. The Guinness Book of Records jointly awarded her with its Lifetime Achievement Award and the title of "Most Successful Female Vocalist of All Time." Ross' phenomenal music career is marked by chart and commercial successes. She has amassed a total of 18 number-one singles. In the U.S. alone, to date, she has tallied 31 Top 10 singles and 14 Top 10 albums, selling over 100 million units around the globe. Beginning in the '60s, as leader singer of the world-renowned group The Supremes, Ross achieved the unprecedented feat of 12 number-one singles in the U.S., making them the most successful American group in history and rivaled only the by The Beatles for the position of the biggest hit group of that generation.