Kim Kardashian
Television personality Kim Kardashian poses at the First Annual Diamond Ball fundraising event at The Vineyard in Beverly Hills, California December 11, 2014. The event benefits the Clara Lionel Foundation (CLF). REUTERS/Mario Anzuoni

Reality stars Kim Kardashian West and Khloe Kardashian took time off their busy schedules to pay tribute to their big boss. Kim and Khloe spent Saturday night in Napa Valley, California to celebrate the 40th birthday of “Keeping Up With the Kardashians” Executive Producer Ryan Seacrest. Ryan’s actual birthday was on December 24, but the sought-after TV personality and host only managed to celebrate two months later.

Kim and Khloe, along with the rest of the Kardashian-Jenner clan, have Ryan to thank for their fame and fortune. Although their family had always been fairly wealthy, they became household names and worldwide superstars through the vision of Ryan Seacrest in partnership with family matriarch Kris Jenner.

Ryan has been the executive producer of “Keeping Up With the Kardashians” since the reality show premiered in October 2007. With the 10th season set to launch on March 15, Kim and Khloe took the time to attend Ryan’s birthday bash in Napa along with other colleagues and friends.

Kim showed off a series of photos from the celebrations which she took with her mobile phone. She started off by posting a selfie featuring herself and her sister Khloe and their matching plunging black dresses. She also posted a close-up selfie with Khloe which she captioned with the line that Scott Disick has been throwing around to mock affair rumours with Khloe. Kim said, “I’m in love with the Koko.”

Once the sisters joined the party, it was time for Kim to snap up more photos with the other guests. She took a selfie with Instagram creator Kevin Systrom. Kim is one of the most popular Instagram users, with her wedding photo being one of 2014’s most liked photos on Instagram. She has also just reached 27 million followers on the photo sharing platform.

Kim also took the opportunity to post a photo with the birthday boy himself but her massive diamond engagement ring takes the focus away from Ryan’s smiling mug. Other guests in the party include Ryan’s former "American Idol" family. Idol judges Randy Jackson and Paula Abdul could be seen in one of Kim’s blurry photos from the evening. According to People Magazine, the party was an intimate gathering of only 100 of Ryan’s closest friends. Kim and Khloe were also joined by their mother Kris Jenner in celebrating Ryan’s 40th birthday.

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