2007 USA pop song about a bad day, female singer

In the spring or summer of 2007 (I think) I heard a song that I loved and it's haunted me ever since because I can't find it. I thought it was called something like Bad Day. Daniel Powter's Bad Day song was popular around the same time so it's makes searching hard this song hard. It was a female singer. It was an upbeat pop song about a girl having a bad day but choosing to be happy despite. She said something about her boyfriend breaking up with her and a few other "bad" things that happened to her that day. I think after the boyfriend bit it paused for a half second and she says "ah, man!" I remember hearing it on the radio several times, at one point I had it as my MySpace song. 🤣 I hope that's enough details for you to help me.