Conversation so far:
Did Gwen Stefani do anything besides sing?
Stylist Andrea Lieberman introduced her to haute couture clothing, which led to Gwen Stefani launching a fashion line named L.A.M.B. in 2004.
Was Gwen Stefani's clothing line L.A.M.B a success?
The L.A.M.B. fashion line achieved popularity among celebrities and is worn by stars such as Teri Hatcher, Nicole Kidman, and Gwen Stefani herself.
Did Gwen Stefani do any acting?
Gwen Stefani made her film debut playing Jean Harlow in Martin Scorsese's The Aviator in 2004

Question: Was this a success?
Self-contained rewrite: Was Gwen Stefani's acting career a success?