In the meantime, keyboardist John Hall, unhappy with Tabak's firing, left Prism as well and the new four-piece line-up (Small/Mitchell/Harlow/Norton) recorded the album "Small Change" in the summer of 1981, which was released that December. Keyboards on the album were handled by Jimmy Phillips (who had previously played with The Guess Who in 1979 under his real name of Jimmy Grabowski) and guitarist Randy Hansen and harmonica player Norton Buffalo were among those who also contributed to the sessions for "Small Change". Plus Harlow's and Norton's contributions to the record were reportedly minimal as Capital had more session players brought in, in hopes of a hit. The lead track "Don't Let Him Know", written by Jim Vallance (using his real name) and Bryan Adams, became Prism's first top 40 hit (#39 in early 1982) in the US and a #1 single on Billboard's new Rock Tracks chart. The follow-up single "Turn on Your Radar" also charted at #64, becoming their fifth and final American charter.