Rod Stewart's ex-wife, 36, has limited acting experience, but her performance in TV talent show Dancing With The Stars convinced stage bosses her dancing skills are good enough for the role of Swedish secretary ULLA - played by Uma Thurman in the recent film version.
A theatre source tells British newspaper the Daily Express, "Rachel is thrilled. She wants to be known for her own talents rather than being Rod's ex. And she really took to dancing. We think she'd be fabulous as Ulla. She'd certainly look the part to perfection."