Reese Witherspoon recently celebrated her 40th birthday…and she DID. IT. UP. The star studded Hollywood party featured surprise performances from Taylor Swift, and Keith Urban!! Taylor sang a couple of her own songs, but Keith Brought Reese on stage to sing SWEET HOME ALABAMA together! A friend of Reese’s posted a video captioned “You can take the girl out of the south, but you can’t take Sweet Home Alabama out of the girl!”