Gwen Stefani, who's been looking to launch an acting career, has found a role that makes the most of her classic looks.

The No Doubt singer has signed on to play the starlet who first began the platinum blonde craze, Jean Harlow, in Martin Scorsese's biopic of Howard Hughes. The flick, titled "The Aviator," stars Leonardo DiCaprio.

Miramax confirmed that the role has been extended to Stefani, but since not all the paperwork had been signed, the film company would not say that she had accepted. However, a source close to the singer confirmed that Stefani will take the role, and is tentatively expected to start shooting in Montreal in August.

The film is about the early life of tycoon Howard Hughes, including his tenure as a Hollywood film producer. Hughes launched the careers of several starlets, and romanced others, including Ava Gardner and Katharine Hepburn. His Hollywood stint started with the 1930 production of the aviation melodrama "Hell's Angels," which began as a silent film and ended up as one of the first big talkies. It starred a then-18-year-old Harlow in her first major role. Hughes later produced such films as "The Front Page," "Flying Leathernecks" and the original "Scarface," released in 1932.

Cate Blanchett is expected to sign on as Hepburn, and Kate Beckinsale as Gardner.