David Beckham celebrated the Queen's 70-year-reign with a sweet Instagram post on Thursday acknowledging her incredible service.READ: Cruz Beckham's new girlfriend revealed as couple enjoy loved-up date in LondonTaking to the social media platform, the ex-England captain shared a series of images of Her Majesty at varying points in her lifetime, including a photo of the David greeting the Queen at the Young Leaders Awards ceremony in 2018. WATCH: The Queen joins royal family on the balcony for her Jubilee celebrationsThe 47-year-old captioned the post: "Today, we celebrate our Queen’s Platinum Jubilee. 70 years of service and inspirational leadership of our country.