By Joseph Wilkes David Beckham left his wife Victoria teary-eyed with a touching tribute at her 50th birthday bash. The former England football captain called Posh “inspirational” and a “role model” partner as she welled up in front of a crowd of 100 guests, including her Spice Girls bandmates. The proud father of four also captured the moment when Victoria sang with her band for the first time since 2018. Their son Cruz, who recently embarked on a music career, performed their 1996 hit ‘Mama’ at Oswald’s in Mayfair. Despite nursing a broken foot, Victoria was one of the last to leave, carried…