Barbra Streisand is an influential American singer, songwriter, and actress renowned for her distinctive mezzo-soprano voice that combines both pop and traditional vocal styles. She emerged as a significant figure in the mid-1960s, with her Broadway-inspired style and ability to traverse various musical genres, including pop, jazz, and classical. Streisand's most notable works include the hit singles "The Way We Were" and "Evergreen," and her album "Guilty" showcases her signature melodic pop sound. She has significantly impacted the music industry, becoming one of the best-selling recording artists of all time and earning numerous awards, including two Academy Awards and ten Grammy Awards.