allegorical story-telling and more heavily on topics that explored humanistic, social, and emotional elements. Rush toured Permanent Waves for six months through 1980 to over 650,000 people across 96 shows, becoming their first to make a profit. After the tour, Rush joined fellow Toronto-based rock band Max Webster to record "Battle Scar" for their 1980 release, Universal Juveniles. Their lyricist, Pye Dubois, offered the band the lyrics to a song he had written. The band accepted; the song went on, after reworking by Peart, to become "Tom Sawyer". Rush's popularity reached its pinnacle with the release of Moving Pictures in early 1981. Moving Pictures essentially continued where Permanent Waves left off, extending the trend of accessible and commercially friendly progressive rock that helped thrust them into the spotlight. The lead track, "Tom Sawyer", is probably the band's best-known song. Upon release, it reached No. 24 on the Canadian Top 40 Singles Chart, No. 44 on the Billboard Hot 100, and No. 8 on the new US Album Rock Tracks chart. The second single "Limelight" also received a strong response from listeners and radio stations going to No. 18 in Canada, No. 54 on the Hot 100, and No. 4 on the US Album Rock Tracks Chart. Moving Pictures was Rush's last album to feature an extended song, the eleven-minute "The Camera Eye". The song also contained the band's heaviest usage of synthesizers yet, hinting Rush's music was shifting direction once more. Moving Pictures became the band's first album to reach No. 1 on the Canadian Albums Chart, and also reached No. 3 on the US Billboard 200 and UK album charts; it has been certified quintuple platinum by both the Recording Industry Association of America and Music Canada. Following the success of Moving Pictures, Rush released a second live recording, Exit... Stage Left, in 1981. 1981–1989: Synthesizer-oriented era The band underwent another stylistic change with the recording of Signals in 1982. While Lee's synthesizers had been featured instruments ever since the late 1970s, keyboards were shifted from the background to the melodic front-lines in songs like "Countdown" and the lead-off track "Subdivisions". Both feature prominent lead synthesizer lines with minimalistic guitar chords and solos. Other previously unused instrument additions were seen in the song "Losing It", featuring collaborator Ben Mink on electric violin. Signals also represented a drastic stylistic transformation apart from instrumental changes. The album contained Rush's biggest hit