Hi Infidelity is the ninth studio album by REO Speedwagon, released in 1980 (see 1980 in music). It went on to become the biggest selling rock LP of 1981, eventually selling over ten million copies. Six songs from this album hit Billboard charts, including "Keep On Loving You" which was the band's first Number 1 hit, and "Take It on the Run", which reached No. 5 on the charts.