Simon Cowell, Amanda Holden and David Walliams have reunited for the first time in over a year and look like they couldn't be happier about it! MORE: Simon Cowell makes rare comment on terrifying back injury - fans reactThe Britain's Got Talent stars got together on Friday for an alfresco meal at the Rosewood Hotel in London and shared many photos of their fun night to social media.The trio were joined by Simon's girlfriend Lauren Silverman and Alan Carr and his husband Paul Drayton for the