Kellie Pickler and Taylor Swift are super tight...Kellie has even said that she thinks of Taylor as a little sister.
So for Kellie's birthday, Taylor sent Kellie a birthday tweet, "Happy birthday @therealpickler!!!!!! I love you!" and Kellie responded, "@taylorswift13 thanks!! love you too!! miss you!!!
First of all, that's a lot of exclamation points.
But it also made us wonder...is tweeting someone happy birthday enough if you're really good friends? We're pretty sure Taylor probably called Kellie, but what if she didn't?
Is a birthday tweet okay?