Kim Kardashian , 44, reportedly pays several times the amount of many people’s annual salaries just for her private pianist over Christmas . The reality TV star shares four children - North , 11, Saint , eight, Chicago , six, and Psalm , five - with her ex-husband Kanye West , 47. Instead of waking the kids up with alarm clocks, Kim has been hiring a private pianist to wake them up in December for years. The Skims founder invites Philip Cornish over to the mansion, with the pianist having