REO Speedwagon -Hi Infidelity is their ninth studio album released in 1980 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. The album title is a play on the term Hi-Fi, and the album art is an illustration of this pun where an act of sexual infidelity is occurring while the man is putting a record LP to play on the hi-fi stereo. The song "Tough Guys" uses an audio clip from the 1938 Our Gang episode Hearts are Thumps .