There was this guy who auditioned that even Simon Cowell couldn't stop him from singing and he really doesn't do it well. He was sort of mad when Simon tries to stop him from singing. And to get rid of his Seasons of Love version from piercing to my ears, I look for the original version to clean up the mess he did.
Also, there was this girl named Drew Ryniewicz’s who performed Justin Bieber's Baby, and it's refreshing to listen to.
Unfortunately, I can't hardly find the video of the guy who sang Seasons of Love in X Factor US. Maybe no one bothered to upload it.
UPDATE 1 :
Finally found his audition footage, his name is Devon Talley, you can check it from his photo below.
Share and Enjoy!