"One Simple Thing" was the lead single from Tyranny, and it picked up a bit of airplay -- even breaking into the top 100 at #93. However, the follow up single did not do as well, and the band was dropped by the label before releasing their second effort.
There seems to be remarkably little information on Christenson and Nevens since then, so if any reader has information to share, please leave it in the comments.
"One Simple Thing" is a classic 1980's pop song, in the Mr. Mister vein (note that Mr. Mister's Welcome to the Real World hit #1 on the album charts in early 1986).
Cool trivia fact: "One Simple Thing" was directed by David Fincher, who got his start in videos (including Jermaine Stewart's "We Don't Have To Take Our Clothes Off" and Loverboy's "Notorious") before transitioning to movies (Seven, Fight Club and The Social Network, among others).