British pop star Rachel Stevens will replace fellow singer Frankie Sandford on an upcoming U.K. stage show tour based on reality Tv series Strictly Come Dancing.

The Saturdays singer Sandford and her soccer player husband Wayne Bridge are expecting their second child so doctors recommended she should drop out of the tour as it would be too much for her.

Former S Club 7 star Stevens, who came second on the show in 2008, is more than happy to step in and join the tour, which kicks off on Friday (16Jan15).

She writes on her website, "I'm really happy for Frankie and Wayne - it's great news to start the New Year with! I know she's disappointed not to be doing the tour - I was supporting Team Frankie during the show and she was fantastic, but I'm happy to be able to step in for her."