Opera singer Katherine Jenkins, tennis legend Martina Navaratilova and 'Melrose Place' actor Jack Wagner lead the 'Dancing with the Stars' line-up.

Joining the trio of famous faces when the 14th season of the celebrity dance competition hits screens on March 19 will be singers Gladys Knight and Gavin DeGraw, Disney star Roshon Fegan and Melissa Gilbert, the actress who played Laura Ingalls in 'Little House on the Prairie'.

Katherine Jenkins is ''a little nervous'' about taking part in 'Dancing with the Stars'.

The opera singer is hoping to enjoy the ''challenge'' of the US TV dance contest - in which she will be partnered by Mark Ballas - but is unsure she can meet the physical demands.

Katherine Jenkins, Jack Wagner and Melissa Gilbert are to take part in the next series of 'Dancing with the Stars'.

The Welsh opera singer, the 'Melrose Place' actor and the former 'Little House on the Prairie' star are among the stars in the line-up for the 14th season of the hit show.