Witherspoon tweeted a picture of the trio standing outside the Rockwell Theater in Los Angles on Thursday (28May15) to catch a performance of The Unauthorized Musical Parody of Cruel Intentions.

She added in a caption, "Best girls night of the year!!! #cruelintentions".

After the show, the three stars met with the actresses who play their characters onstage, and Gellar shared a picture of the six of them standing together, adding, "To the entire amazing cast of #CruelIntentionsMusical thank you for an amazing show."

Gellar and Blair also played up to photographers by re-enacting their famous smooch from the movie, which earned the pair an MTV Movie Award for Best Kiss in 2000.