The Keeping Up With The Kardashians siblings were pictured arriving at LAX Airport on Sunday (9 November) after a long-haul flight from England.
They'd been in the capital to promote their affiliation with HairFinity, being the special guests of honour at a glamorous party thrown on Saturday night.
Kim and Khloe only arrived in the UK from the US the day of the big event, and left the country the morning after.
No wonder they were tired!
Saturday night's event in London was attended by stars including Rochelle and Marvin Humes and Radio 1 DJ Nick Grimshaw. It was held at Il Bottaccio near Hyde Park Corner.
Specially invited guests - including Reveal - arrived at the venue around 7pm. We sipped on cocktails and champagne waiting for the girls to arrive, which they did around three hours later. Well, gotta make an entrance right?
After smiling, waving and taking a few selfies with journalists, the siblings hit the stage to thank everyone for coming.
Reveal is now on Google Plus! Join us here for the latest pictures, fashion and celebrity news!