Conversation so far:
What were Gwen Stefani's other ventures?
In late 2007, Gwen Stefani launched a perfume.
What was the name of Gwen Stefani's perfume?
In late 2007, Gwen Stefani launched a perfume, L.
Are there any other interesting aspects about the Gwen Stefani article besides her perfume L?
In September 2008, Gwen Stefani released a fragrance line.
What was the name of the fragrance line released by Gwen Stefani in September 2008?
Gwen Stefani released the fragrance line as a part of her Harajuku Lovers product line.

Question: What else was she known for?
Self-contained rewrite: What else was Gwen Stefani known for besides her perfume L and her Harajuku Lovers fragrance line?