Billie Eilish, born December 18, 2001, is an American singer and songwriter who first gained fame at a young age. She was just 13 years old when she first uploaded her debut single “Ocean Eyes” on SoundCloud in 2015. The song quickly went viral and gained millions of plays, catching the attention of major record labels and music industry professionals.

After signing with Darkroom and Interscope Records in 2016, Billie continued to release music and gain a following. However, it was not until 2019 that she became a mainstream sensation with the release of her debut album “When We All Fall Asleep, Where Do We Go?” at the age of 17.
The album debuted at number one on the US Billboard 200 chart and several of its singles, including “Bad Guy” and “All the Good Girls Go to Hell,” became major hits. The album’s success led to Billie winning several awards, including multiple Grammy Awards.
In addition to her music, Billie has become known for her unique fashion sense and personal style, often sporting oversized clothing and bold hair colors. She has also been open about her struggles with mental health and has become a role model for young people around the world.
In conclusion, Billie Eilish was 13 years old when she first gained fame with the release of her debut single “Ocean Eyes” in 2015, but it was not until the age of 17 that she became a mainstream sensation with the release of her debut album “When We All Fall Asleep, Where Do We Go?” in 2019.