By Joel Leaver Diana Vickers showcased her figure in a bikini in a recent video whilst teasing her followers that she’s open to collaborating with swimwear brands over the summer. The singer-songwriter, 32 – known for having competed on the X Factor back in 2008 – shares updates with her followers through her Instagram account. She’s understood to have taken to the platform recently to share footage of herself modelling a bikini. The video showed Diana sporting a green and blue two-piece set whilst seemingly standing in a bathroom. She struck a pose in the outfit before turning around to revea…