Jennifer Hudson on how Sir Tom Jones helped her embody Aretha Franklin in film

Jennifer Hudson stars as Aretha Franklin (Quantrell D Colbert/Universal/PA)

Jennifer Hudson has described how Sir Tom Jones served as her vocal coach to help her transform into Aretha Franklin for a biopic about the late singer.

The Oscar-winning actress plays the Queen of Soul in Respect, which follows the life of the superstar from her childhood to the release of her juggernaut album Amazing Grace.