The singer, nicknamed Ginger Spice, was flooded with goodwill messages as she turned 54, with her former bandmates joining in the celebrations. Lady Beckham, known as Posh Spice, posted a throwback photo of herself hugging Halliwell-Horner to her 33 million Instagram followers, writing: "Happy birthday @GeriHalliwellHorner. The post, which showed many shots of Ginger Spice in her signature Union Jack outfit, was captioned: "It’s time to celebrate our Ginger Spice! "Happy birthday @GeriHalliwellHorner. "Happy Birthday @GeriHalliwellHorner.