Mel C jokingly reminded Victoria that they are both still younger than their former bandmates. "Happy Birthday @victoriabeckham ! If you're feeling a bit old today remember we're still younger than Geri! (Love you Ginge!)," Melanie wrote. "Have the most wonderful day, love you to pieces and I miss sharing the stage with you, hoping we can do it again some day." Do we sense a Spice Girls reunion in the works?