The mezzo-soprano has been practicing for the show in London with professional partner Mark Ballas.
He says her preference for wearing stilettos in her regular life is an advantage because she is used to running around in shoes that are higher than ballroom shoes.
The dancing partners are flyin to the U.S. today to join the other competitors, who include Family Matters actor Jaleel White, singer Gladys Knight and National Football League player Donald Driver.
Jenkins and Ballas deny rumors they are romantically linked off the dance floor.
“We knew each other for just twelve hours, and in the press it is we are now dating.”
The gossip was inevitable after Katherine’s recent high profile split from her fiancée, TV presenter Gethin Jones (who incidentally appeared on Strictly Come Dancing, the UK equivalent of Dancing With The Stars, a couple of seasons ago.
The new season of Dancing With The Stars starts March 19 on ABC.