Product placement involves placing branded goods or services in media contexts without advertisements, such as movies, music videos, and television shows. It became common in the 1990s as a way for brands to reach niche audiences. Product placement is an investment that can increase consumer awareness of a brand. Famous early examples include placements of Hershey's chocolate in Wings (1927) and Wrigley's gum in M (1931). Sponsorship of radio and television programs was also an early form of product placement.