Former Primeval actress Hannah added: "It's all very exciting. I'm looking forward to going down memory lane."
S Club 7 formed in 1998 and rose to fame by starring in their own hugely popular BBC television series Miami 7. The pop group achieved four number one hits with songs including 'Reach' and 'Bring It All Back'. The group split in 2003 following Paul's exit from the band in 2002 - but after a 12-year hiatus, S Club are now back!