Frank Loesser was an American composer and lyricist, born on June 29, 1910, in New York City. He is best known for his work in musical theater, particularly for creating the scores for popular shows like Guys and Dolls and How to Succeed in Business Without Really Trying. His songs often featured clever lyrics and memorable melodies. Loesser's contributions to music earned him significant recognition, including a Tony Award and an Academy Award for Best Original Song for "Baby, It's Cold Outside." He was influential in shaping the sound of American musicals during the mid-20th century and left a lasting legacy in the world of theater.