Dewi Sandra Killick was born in Brazil on 3 April 1980. She is of mixed heritage; her father, John George Killick, was a British national and her mother, Prihartini, was Betawi. As a child, she was overweight; this led her to receive the nickname "Miss Piggy". However, she lost weight and began modeling in her teens, later recording the compilation album Menari-Nari (Dance) with her fellow models.
She released her first solo album, Kurasakan (I Feel), in 1998 to lukewarm reception. Critics objected that she was only "sell[ing] a pretty face". She then received further vocal training, after which she released Tak Ingin Lagi (Don't Want It Anymore), which was received better.
Her next album, Kuakui (I Admit), was released in 2004 after three years production. The following album, 2007's Star, was more experimental. It mixed uptempo beats on some tracks with slow ballads.
The following year, Sandra became the host of the fifth season of Indonesian Idol. She also turned to acting, starring in several teen films.
Sandra released her fifth album, Wanita (Woman), not long after her divorce in 2009. A single from the album, "Kapan Lagi Bilang I Love You" ("When Will You Say I Love You Again"), was released in April, with the album following in October. One of the songs, "Satu Untuk Selamanya", discussed how happy she had been with Glenn Fredly at the beginning of their relationship.
Kurasakan (I Feel; 1998)
Tak Ingin Lagi (Don't Want It Anymore; 2000)
Kuakui (I Admit; 2004)
Wanita (Woman; 2009)