Kourtney KardashianDespite all the drama on 'Keeping Up With The Kardashians,' Kourtney Kardashian and sister Kim Kardashian seemed excited when they dropped in for a surprise visit to Ryan Seacrest's KIIS-FM radio show. Kourtney brought along her new boy Mason Dash Disick, who was born Dec. 14. Also along for the appearance was their mom Kris Jenner. "I take Mason everywhere with me," Kourtney says on her blog. "We had to stop in and surprise Ryan! Watch: