The pregnant star was dressed in a cleavage-boosting black halterneck dress and heels as she made the most of a very sunny day in the capital.
Kim, 34, had to pass a slew of fans and cameras before she got to her car and whizzed off – perhaps off to meet up with husband Kanye West who is also in town.
The Keeping Up With The Kardashians star arrived in the UK yesterday after attending a creativity conference in France, where she discussed her social media presence and successful app Kim Kardashian: Hollywood.
She reunited with rapper Kanye for dinner at Hakkasan last night (known to be Kim's favourite restaurant in London!) before heading back to their hotel.
Let's hope she had a better night's sleep than the evening before…
Kim revealed on Wednesday she'd been kept up since 4am because a drunk, naked woman had been trying to get into her Cannes hotel room after mistaking it for her own room.
It's thought Kim will be heading off to Worthy Farm tomorrow night to support Kanye, 38, when he headlines the Pyramid Stage at Glastonbury.