"Clarity" by Zedd is one of the worst recent songs for me. The vocals are just so shrill and off to me. His other stuff has been ok because of different vocalists, so it's not as screechy.
Loving all the hate for Florida Georgia Line. "Cruise" has to be one the worst country songs of the last 20 years. Add to it that Billboard changed their ranking formulas for the country and R&B charts so that they took their data directly from the Hot 100 right at the time that song hit it big on pop radio. Because of pop airplay and sales, it remained at #1 for 24 weeks on the Country Songs chart (including a three-week run at the top when it was just a country hit). While I never liked the song, Billboard certainly helped cement my feelings about it as time went on. Bro country, in general, just needs to go. Now.
I hated everything from Michael Jackson's "Bad" and "Dangerous," but liked pretty much everything from "Thiller" and "Off the Wall." The production in later material was just so cliche' and repetitive. I could not dive for the radio dial fast enough in the late 80s and early 90s when his newer songs came on.
There are hardly any Taylor Swift songs that bother me. The only one that I really don't like having to hear is "Last Christmas." It's really the only song that when people would say "she's so off-key," etc., etc., that I completely agree. It's like they put her in a tin can, let her gargle with kerosene, and had a 1st-time producer helming the recording session. It didn't work on any level.