Lights Out is the sixth studio album by the British rock band UFO, released in May and also on 11 October 1977 (see 1977 in music). All songs are band originals except for "Alone Again Or" which is a cover of a song by the band Love. Reaching #23 on the Billboard Hot 100, it remains the band's highest charting album in the United States.
The album was UFO's first to feature lush string arrangements alongside more complex song structures than their previous albums. Producer Ron Nevison brought in Alan McMillan to handle the string and horn arrangements. The most notable song to feature the orchestral coloring was "Love to Love".
In 1994, a CD comprising this album and No Heavy Petting was released by BGO Records. 2008 EMI's remastered edition includes 4 live bonus tracks, recorded at The Roundhouse, London. The album cover erroneously states that these tracks were recorded in 1976, but the correct year is 1977. EMI did correct the writing credits, with Paul Raymond finally being credited for his contributions.