Ann-Margret is a Swedish-American actress and singer. She has appeared in numerous films and television shows, including "Bye Bye Birdie" (1963), "Viva Las Vegas" (1964), and "Tommy" (1975). Ann-Margret is known for her dynamic and energetic performances, as well as her versatility as an actress. She has received numerous award nominations and has won several awards, including a Golden Globe for her performance in the television movie "A Streetcar Named Desire" (1984). In addition to her acting career, Ann-Margret is also a successful recording artist, having released several albums and had several hit songs, including "I Just Don't Understand" and "It's a Nice World to Visit (But Not to Live In)".