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She kept her accessories to a minimum with a pair of large drop earrings and a silver bangle as well as toting a small bag with a silver chain.
The blonde beauty wore her long locks down and perfectly tousled, letting them cascade over her shoulders as she arrived at the venue.
Kate and Sadie have come a long way from their hardcore partying days - as both are now teetotal and lead healthy lifestyles.
Back in the day: Supermodel Kate, 47, and designer Sadie, 56, are pictured in 2001 in Berlin
Once inside, Kate posed up a storm for the cameras and shared a few snaps with her good friend DJ Fat Tony.