So Reese Witherspoon held her 40th birhtday party this weekend (crazy, right?!) and she did it in style. 

The actress did it up in Los Angeles with a bash that was a who’s who of (predominantly blonde) A-listers: Kate Hudson, Jen Aniston, Nicole Kidman, Matthew McConaughey…and Taylor Swift, who took to the stage to perfrom a ditty with Keith Urban. 

Oh, and then Reese herself took to the stage for, what else, ‘Sweet Home Alabama’.