Rochelle waves to fans at the Jingle Bell Ball show at London's O2 Arena. This image appears in the gallery:The Saturdays Live At The 2011 Jingle Bell Ball 13. Rochelle waves to fans at the Jingle Bell Ball show at London's O2 Arena. Pic: PA Photos 18 images See the full gallery: The Saturdays Live At The 2011 Jingle Bell Ball