3X in Beyonce's lyrics

Someone brought it to my attention that in Beyonce's songs she repeats and writes everything three times i thought this was a hilarious idea for me to write about in my blog. Its so true when she was in Destiny's Child she wrote "NO,NO, NO" then "Bills, Bills,Bills" , "Say My Name", and then "Single Ladies" lolz. So my dear Beyonce I have to say I love you and your music but what's with the emphasis on three times in your lyrics? Is it because you want us to remember the song well or you just want us to keep it in mind that you want people to remember that three times will make the impact. So maybe she does it so we can remember the song or so we at least feel the song. Has anyone else noticed this lolz its funny actually. But let me know this is an open blog i don't mind your opinions and if you know other songs let me know. =)