Harry Lillis “Bing” Crosby (May 3, 1903 – October 14, 1977) was an American popular singer and actor whose career lasted from 1926 until his death.

One of the first multimedia stars, from 1934 to 1954 Bing Crosby held a nearly unrivaled command of record sales, radio ratings and motion picture grosses. He is cited among the most popular musical acts in history and is currently the most electronically recorded human voice in history. Crosby is also credited as being the major inspiration for most of the male singers of the era that followed him, including Frank Sinatra, Perry Como, and Dean Martin. Yank magazine recognized Crosby as the person who had done the most for American G.I. morale during World War II and, during his peak years, around 1948, polls declared him the "most admired man alive," ahead of Jackie Robinson and Pope Pius XII. Also during 1948, the Music Digest estimated that Crosby recordings filled more than half of the 80,000 weekly hours allocated to recorded radio music.

Crosby exerted an important influence on the development of the postwar recording industry. In 1947, he invested US$50,000 in the Ampex company, which developed North America's first commercial reel-to-reel tape recorder, and Crosby became the first performer to pre-record his radio shows and master his commercial recordings on magnetic tape. He gave one of the first Ampex Model 200 recorders to his friend, musician Les Paul, which led directly to Paul's invention of multitrack recording. Along with Frank Sinatra, he was one of the principal backers behind the famous United Western Recorders studio complex in Los Angeles.

In 1962, Crosby was the first person to receive the Grammy Lifetime Achievement Award. He won an Academy Award for Best Actor for his role as Father Chuck O'Malley in the 1944 motion picture Going My Way. Crosby is one of the few people to have three stars on the Hollywood Walk of Fame.