Jenkins started 2010 by appearing as one of two mentors on ITV1s prime time Friday night show, "Popstar to Operastar". Later in the year, she appeared on the ITV1 game show "Magic Numbers", acting as magician and show host Stephen Mulhern's assistant in the UK TV premiere of an illusion in which she was sawed in half inside a clear box. She also appeared in the 2010 Christmas Special of "Doctor Who", "A Christmas Carol", in which she played Abigail Pettigrew—her first major acting role. Jenkins appeared as the featured singer on 11 April 2011 episode of ABC's show "Dancing with the Stars" (DWTS) singing "Con te partirò" (Time to Say Goodbye) and "O mio babbino caro". She later sang "The Flower Duet" with DWTS regular Beverley Staunton.