Strike a PoseFrom Beyonce to Rihanna, the 11 Best Fashion InstagramsBeyonce sports a Tom Ford "knock-off of a knock-off," Rihanna celebrates her bday in Ass-pen, and Lupita Nyong'o reads in a ballgown. Plus, more of this week's best fashion instagrams.The Fashion Beast Team02.22.14 5:45 AM ET Beyonce sports a Tom Ford "knock-off of a knock-off," Rihanna celebrates her birthday in Ass-pen, and Lupita Nyong'o reads in a ballgown. Plus, more of this week's best fashion instagrams. Cara DelevingneSeeing double! Cara Delevingne cozies up to Karl Lagerfeld and his Fendi Buggy friend backstage at Milan Fashion Week. #TWINS. Chrissy TeigenModels can read, too, Chrissy Teigen says. BeyonceQueen B pulls her look straight from the catwalk, rocking a furry 'Picasso Baby' "knock-off of a knock-off" by Tom Ford. Taylor Tomasi HillTTH has scored the perfect red 'do. Gwyneth agrees. RihannaWelcome to Ass-pen. Bad gal Ri-Ri rings in the big 2-6 by hitting the slopes. #CabinLife. Elle UKThe model-off-duty look is giving Elle UK major #shoeenvy, especially when they trade six-inch stilettos for Chanel trainers. Katie GrandModel Jourdan Dunn practices her smize with LOVE magazine's Katie Grand's pet rabbit, Clara. #TwoPeasInAPod. Lucy YeomansNet-a-Porter founder Natalie Massenet celebrates PORTER at the Palazzo. Ruby Jean WilsonModel Lara Mullen dons her best Chanel-box hat. Warning: new trend alert! Nicole RichieThere's nothing like a Nicole Richie/Britney Spears selfie to really get the party started. Lupita Nyong'oIt's easy being green when you're Lupita Nyong'o. The actress gets comfy—in a Dior ballgown—to read a family member's new children's book.