Last night saw Rihanna host the second ever Diamond Ball in Los Angeles, which aims to raise funds to help communities across the globe. The singer wore an incredible, extravagant gold Dior ball gown to walk the red carpet.
Earlier this week saw the A-listers gather in New York for an evening honouring famed designer Valentino. Celebrities including Keira Knightley and Diane Kruger wore designs by the man himself to attend the evening.
Head this way to see all the best looks from the week so far.