The title track to the Sunny Days album became one of Lighthouse's two Top 40 hits, peaking at number 34 in November of 1972. Sunny Days was the band's seventh album, yet their full-scale sound and spirited rock & roll style was still very much intact. The saxophone and trombone work that gave them the label as a poor man's Chicago can be found streaming through songs like "Silver Bird" and "Letter Home," while "Broken Guitar Blues" became one of their hardiest efforts, receiving quite a bit of air play on Canadian radio stations.
The last studio album from Three Dog Night to crack the Top 20, Hard Labor shows the growing cracks in the band's armor. Where on previous albums they had selected songs that highlighted their harmonic prowess, most of the tracks on Hard Labor are essentially solo efforts with group backing vocals. As a result, the band loses much of their soul and spirit. The lightweight hits, "Sure As I'm Sittin' Here" and "Play Something Sweet (Brickyard Blues)," both with Cory Wells singing lead, are most representative of the record. However, the highlights are the Chuck Negron-sung "The Show Must Go On" (written and originally performed by Leo Sayer) and the dramatic, emotional ballad "I'd Be So Happy" (penned by Skip Prokop of Lighthouse fame).