BBC1 Radio is a British radio station operated by the BBC that primarily targets 15-29 year olds. It was established in 1967 to play chart hits and modern popular music throughout the day and more alternative genres after 7pm. In the 1970s, it became the most listened to station in the world with audiences over 10 million despite initial unpopularity. In the 1990s, it helped popularize Brit-pop bands like Oasis and Blur but later focused more on boy bands and chart pop. It remained popular with younger audiences though numbers declined overall in the 2000s.