Gigi Hadid, Carine Roitfeld, Justin Bieber, Kim Kardashian

After a week of grandiose runway shows, coffee dates at Café de Flore, and stylish soirées filled with fashion royalty, we've finally said good bye to Paris Fashion Week this season. But not, of course, without one last bash to see us off. CR Fashion Book No. 5 launched with a bang last night, thanks to a party at the Peninsula Hotel in celebration of Carine Roitfeld and Stephen Gan. Everyone from Justin Bieber and Selena Gomez (it's unclear whether they were together, but we digress...) to Karl Lagerfeld and Kim Kardashian came out for the event, which featured a performance by Jessie Ware and a surprise cake for birthday girl Carine. Click through for more photos of PFW's last fashionable fête.

Where: The Peninsula Hotel

Who was there: Guests included Carine Roitfeld, Karl Lagerfeld, Gigi Hadid, Justin Bieber, Kendall Jenner, Kim Kardashian, Olivier Rousteing, Rosie Huntington-Whiteley, Anna Dello Russo, Rachel Zoe, Joan Smalls, Riccardo Tisci, Selena Gomez, Stephen Gan, Kris Jenner, Ciara, Cara Delevingne, Mario Testino, Miranda Kerr, Giuseppe Zanotti, Paris Hilton, Vladimir Restoin Roitfeld, Nicky Hilton, Jeanne Damas, Jeremy Kapone, Duncan Edwards, Jeanette Chang, Michael Clinton, Vika Gazinskaya, Lindsey Wixson, Peter Dundas, Daria Strokus, Sofia Malamute, Jamie Bochert, Sebastian Faena, Julia Restoin Roitfeld, Olivia Palermo, Johannes Huebl, Harley Viera-Newton, Atlanta De Cadenet, Peju Famojure, Chiara Ferragni, Zuzanna Bijoch, Daphne Groeneveld, Hanneli Mustaparta, Logan Horne,Mirtha Michelle, Gabriela Cadena, Hannah Bronfman, Kristin Noel Gibson, Brendan Fallis, Elena Perminova, Soo Joo Park, Baz Luhrmann, Leigh Lezark, and Jessie Ware.

[Gigi Hadid, Carine Roitfeld, Justin Bieber, Kim Kardashian]

[Photos courtesy of CR Fashion Book]