styx's seventh album, "the grand illusion", was released on july 7, 1977, and became their breakthrough album, reaching triple platinum certification. it spawned a top-ten hit and aor radio staple in the deyoung-written "come sail away", which reached no. 8 in 1978. shaw's "fooling yourself (the angry young man)" was a second radio hit and reached no. 29 the same year. the title track also received significant airplay.