Amanda Holden has shared a peek inside Simon Cowell's son Eric's birthday celebrations.The youngster celebrated turning eight, and he was surrounding by his dad and fiance Lauren Silverman's famous pals. Amanda, 50, took to her Instagram stories to share a look inside the bash, with Amanda, Katrina Shalit and Lauren all standing together and posing. "Celebrating Eric's births with these," Amanda penned, followed by two heart emojis.