Concert Goggles
When you go to a concert and the guy (or girl) on stage seems really hot, but when you google search them later they turn out to be average. Usually caused by being so drunk or into the music that you aren't seeing straight.
Abby screamed during the concert that she wanted the lead singer to be inside her, but when she looked him up the next morning she realized it was just concert goggles and that he was balding and had bad skin.