I just can't believe that I was not invited to this. Reese Witherspoon, my long-lost bestie, celebrated her 40th birthday over the weekend in LA and no one even told me about it! Ugh, rude.

Anyway, country superstar Keith Urban wasn't only invited, but he even entertained the guests! And, Reese joined him on stage for a country classic... Check it out!

  See why she's one of my favorites? Anyone who can rock some Skynyrd in sequins, is a friend of mine, ha!

Happy Saturday y'all!! 🎉#BirthdayWeekend

A photo posted by Reese Witherspoon (@reesewitherspoon) on