1LIVE is a popular radio station operated by Westdeutscher Rundfunk (WDR) in Cologne, Germany. Launched on April 1, 1995, it replaced WDR 1 as a youth-oriented station targeting listeners aged 14-39.

The station broadcasts a Contemporary Hit Radio (CHR) format, featuring popular music, comedy, news, and podcasts. 1LIVE has become one of the most successful young radio stations in Europe, with over 2.5 million daily listeners as of 2023.

1LIVE's programming includes live shows hosted by popular presenters, music specials, and themed streams. Some of its notable programs are "Plan B" for specialist music and "Der Sektor" for call-in shows. The station also organizes events and concerts, presenting both established and emerging artists.

In addition to its main channel, 1LIVE operates a digital sister station called 1LIVE diggi, which focuses on electronic, dance-pop, and hip-hop music. The station has embraced digital platforms, offering live streaming, on-demand content, and an app for mobile devices.

With its mix of contemporary music, entertainment, and youth culture, 1LIVE has established itself as a significant player in Germany's radio landscape, particularly in North Rhine-Westphalia.