of social control); a trend which grew throughout the 1980s, with songs such as Lies (Through the 1980s) on technological progress vs. social setbacks on Chance (1980), and with Mann's growing involvement with the anti-apartheid movement which was featured on the 1982 album Somewhere in Afrika. Mann's intention for acknowledgement of oppressed ethnic groups also influenced the 1992 album Plains Music, which featured traditional Native American music. 1970s The group's sixth album, 1975's Nightingales & Bombers, took its title from a World War II naturalist's recording of a nightingale singing in a garden as warplanes flew overhead; the recording appears in a track on the album (the US version included an extra track, a cover of Bob Dylan's; "Quit Your Low Down Ways" sung by Mick Rogers). After this album, Mick Rogers left the band (temporarily, and he still contributed backing vocals to the next album). He was replaced by two musicians, Chris Thompson (lead vocals, guitar) and Dave Flett (lead guitar, backing vocals). The US breakthrough for the band came in the third week of February 1977, when they charted at No. 1 on the Billboard Hot 100 with a cover of Bruce Springsteen's "Blinded by the Light" from The Roaring Silence.The Roaring Silence also featured a guest appearance by jazz saxophonist Barbara Thompson. Taking advantage of the publicity of their hit song, the band re-released another Springsteen song, "Spirit in the Night", re-titled "Spirits in the Night", which the band had released the previous year on Nightingales & Bombers, in a vocally re-cut version with Chris Thompson taking a new lead vocal in place of Mick Rogers' vocal on the original album version. Following these popular successes, the Earth Band released the album Watch (1978), which produced another UK hit single in "Davy's on the Road Again". This song, as well as the re-recording of "Mighty Quinn" (also released as a single to celebrate the original 1968 hit's tenth anniversary), was recorded live with studio overdubs. Before the recording of the album, original bassist Colin Pattenden had departed and was replaced by Pat King. 1980s Drummer Chris Slade and lead guitarist Dave Flett left before 1979's Angel Station. It was announced that Chris Thompson would also be leaving at this same time to pursue his own group, Night, but Night quickly faded after scoring two hits and Thompson was back in time for the Earth Band's next album