Olivier, she was part of a very popular all-girl band in the early 80s called the Go-Gos.
Back then, Belinda carried a few extra pounds on her petite frame. She was also using drugs at the time.
In the mid-80s, she kicked her drug habit, lost the weight, and apparently got a makeover, because she suddenly became a LOT prettier. And she was a long way from ugly to begin with. From about 1986-1990, Belinda Carlisle had a strong solo career with several top 5 hits in the United States.
For about the last 10-12 years, Belinda and her family have been living in France. Thus, her choice in the music of your homeland.
The Go-Gos have reunited a couple of times since about 1993, with Belinda on lead vocals.