Unhearit - get that d@mn song out of your head
We created this site for those of you that have a song stuck in your head and you can't get it out no matter what you do. Using the latest in reverse-auditory-melodic-unstickification technology, we've been able to allow our users to “unhear” songs by hearing equally catchy songs. So really all we're doing is making you forget your old song by replacing it with another one... sorry.
They also have a mobile app. Highly useful.