Flex is the second studio album by English-American singer-songwriter Lene Lovich, released in January 1980 by Stiff Records. The album is produced by Lovich and Les Chappell with additional production by Roger Bechirian and Alan Winstanley. It was recorded at the Wisseloord Studios in Hilversum, Netherlands. She worked with Chappell and Judge Smith on writing the songs. The release of the album was followed by Lovich's first sold-out tour in the United States and a three-month tour within Europe, the highlight of which was a sold-out show in front of 10,000 fans in Belgrade.