In a year as robust as 1975 was for music, why would one ever consciously play Jimmy Buffett? "Come Monday" isn't a bad song, but it's still a snoozer, and especially inappropriate for a Friday.
I'd much rather hear a trifecta of Led Zep's "Trampled Underfoot," Carole King's "Avenue P," and the Four Seasons' "Who Loves You," followed by the obligatory Red Octopus nod.