I guess this is: the weekend day that starts with an "s" song

Wow I really blew it yesterday didn't I?  I completely forgot to post the Saturday Song cuz I was busy from the moment I woke up to the moment I fell asleep last night. That doesn't happen often - thank god. lol

This song has been banging around my mind for some reason.  My girls really like it so play it often and it's kind of catchy, I like it.  Hopefully you will too.  Here's Liar, Liar by Christina Grimmie. Enjoy!