Simon Cowell was joined by a very special guest at a recent taping of America’s Got Talent. On Tuesday, Sept. 3, the judge, 64, was photographed with his 10-year-old son Eric and his fiancée Lauren Silverman, 47, as the family of three walked the red carpet ahead of the live taping of the quarterfinals of AGT.Cowell could be seen standing behind his son, putting his hands on his shoulders as the two smiled together. The proud dad opted for a gray T-shirt and jeans, while his son wore a white T-shirt and jeans. Silverman held her son’s arm and posed in a leopard-print jacket and black pants. The father-son duo also posed for a sweet solo shot together, where Cowell put his arms around his son and held his sunglasses.