Replying to I'm at wits end, help me find this song.

So yesterday while I was lifeguarding at my local pool a song came on the radio. This song has been in my head for the past 24 hours. I have spent the past hour of my life trying to find said song to no avail.


I am going insane.


It's a (I presume female)with a high almost nasal voice voice singing, It's an upbeat sort of happy song.

The only lyrics I can remember is the part of the chorus which consists of "hey hey hey" (I'm not sure exactly how many heys). I also recall the word mercy being used several times in the song.


If I don't hear this song soon my head may implode so my lifespan is currently directly correlated to how fast someone can get me the name of this song.