That's right. Elle Woods is 40. So is Anette off Cruel Intentions. Well, technically she's still 39, give her birthday isn't officially until tomorrow, but that didn't stop her from throwing the mother of all 40ths over the weekend, with guests including Kate Hudson, Jennifer Aniston, Justin Theroux, Courteney Cox, Matthew McConaughey and wife Camila Alves, Robert Downey Jr., Nicole Kidman, Keith Urban, Tobey Maguire, Jason Bateman AND Taylor Swift all reportedly stopping by. 
Kate Hudson posted load of pics from the soiree at Hollywood's The Warwick hotspot before going on the nod (haven't we all). She captioned the below: "When you take a shit load of pictures and you still don't have it perfect so you go for the ole collage post.... Happy Birthday gorgeous girl @reesewitherspoon !!! Love you #TequillaFirst #PostingLater #SaturdayNight #ImSoExcitedToGetIntoBedIDontEvenKnowWhatToDoWithMyself #NotWashingMyFace #GoodNight" 


Meanwhile, Reese's Mom is still getting crazy on the dance floor....


As for the private Swift serenading, Witherspoon posted a series of videos to her snapchat of the songstress doing her thing, which Us Weekly have collated for your enjoyment... 
 

For those of you who'd appreciate another look at Reese's amazing legs while she silently sings to Sweet Home Alabama, here you go...