Its post Law and Order and pre-Go Insane
It does not fit in any box. When Vacation was being filmed in 1982, Fleetwood Mac had a #1 album and the movie studio wanted Fleetwood Mac to do the movie's song. The offer was made just after the Mirage tour and the Mac was not getting back together for anything let along a movie song. Lindsey did the song instead. I think the song is a bit corny but fit the movie perfectly. It never even cracked the top 40 but is probably Lindsey's most profitable song since its used in so many commercials.