Ashley and Kimberly spent the evening dancing and singing along to Mr JT from the luxury of a private box at London's O2 Arena.
Posing for a picture together, the girls were all smiles as Ashley put her arms around Kimberly's shoulders.
Before the event, Ashley had tweeted: "Bringin sexy back!!! Yesssss @jtimberlake Who's excited?!"
Meanwhile, the girls were joined in the Malibu Rum box by Wanted star Max George - who was kind enough to mix up some yummy cocktails.
Thanks to his wonky baseball cap, Max did however look more Justin Bieber than Justin Timberlake!
Sounds like a great night. Can you invite us next time, please?
Watch Justin's throwback video for 'Cry Me A River' here: