Raden Rara Nike Ratnadilla Kusnadi (27 December 1975 – 19 March 1995), better known as Nike Ardilla (Indonesian pronunciation: [nikə ardila]), was an Indonesian singer and actress of Sundanese descent. Usually referred to as the Lady Rocker and the Queen of Rock by the Indonesian media, Nike was instrumental in the return of teen pop rock to the country's music scene and had a dominant presence during the first half of the 1990s.

At the height of her career and fame in 1995, she was involved in a traffic incident that took her life at the age of 19. Her death prompted an outpouring of nationwide grief. The media regularly refers to the fact that she is the only musician in the country whose death continues to be mourned even after more than 25 years, and hailed by many as one of the most successful figures in Indonesia's entertainment industry.

Nike has sold more than 30 million albums to date, making her the best-selling Indonesian artist in history and her 1990 album Bintang Kehidupan which has sold over 6 million copies in Southeast Asia, holds the title of being the best-selling Indonesian album of all time.

Raden Nike Ratnadilla was born on 27 October 1975 in Bandung, West Java, the youngest child of three siblings of Raden Edi Kusnadi (1940–1997) and Nining Ningsihrat (1935–2022). Her father worked for the Indonesian Railway Company (PT Kereta Api Indonesia), which caused the family to move periodically throughout her childhood. They eventually settled in Bandung, where she began performing in talent shows at the age of five, winning a local singing competition in 1980.^{[citation needed]}

Denny Sabri, a talent scout, helped Nike secure a recording contract with Arista Records. In 1987, she contributed to the compilation album Bandung Rock Power, which also featured Nicky Astria, Mel Shandy, among others. At the age of 13, she released her debut album, Seberkas Sinar (1989), reportedly completing its recording in a single day. The album reached number one on the charts and sold over one million copies within a year. Its title track remained at the top of the charts for ten weeks, while other tracks, including the ballad "Cinta Pertama" and "Tembang Asmara", also achieved strong chart performance.

In early 1990, she released her second album, Bintang Kehidupan, whose title track again topped the charts. The album debuted at number one and sold over 500,000 copies in its first week, setting a new record for single-week sales by a female artist. By 1991, Bintang Kehidupan had sold more than two million copies and earned two BASF Awards for Best New Artist and Best Selling Album. That same year, she performed the title track at the Asia Song Festival in Shanghai, where she received the "Gold Prize of New Singer."

Her subsequent album, Nyalakan Api (1990), earned her a third BASF Award, again for Best Selling Album. This was followed by Matahariku (1991) and, in 1992, Biarlah Aku Mengalah, which was featured on Musik Plus. After winning Best Selling Album consecutively at the 1993 BASF Awards, she released the compilation album Tinggallah Ku Sendiri (The Best Of), which included the hit single "Tinggallah Kusendiri". She later moved from Blackboard Records (now Universal Music Indonesia) to Musica Studios for Biarkan Cintamu Berlalu, which debuted at number one and earned her the 1994 HDX Award for Best Selling Album. Her final album, Sandiwara Cinta, was released on 1 March 1995. Its lead single began receiving radio airplay in late February, and the first version of its music video premiered on television around the same time. A second version of the video was released posthumously in April 1995, featuring Ardilla styled after her idol Marilyn Monroe. Sandiwara Cinta later received HDX Awards for Best Selling Album, Best Single (Deru Debu), and Best Video Klip MTV Indonesia.

In addition to her music career, Nike was active as an actress and model. In 1986, she joined the cast of the film Kasmaran, starring Ida Iasha and Slamet Rahardjo, in which she portrayed the daughter of Iasha's character. In 1988, she appeared in the popular regional film series Si Kabayan and recorded a song for its soundtrack. In 1990, she starred in Ricky Nakalnya Anak Muda alongside Ryan Hidayat, a film that became a box office success. She continued to appear in commercially successful films throughout the late 1980s and early 1990s, and also gained recognition in several television soap operas, including NONE, one of the highly rated series directed by Putu Wijaya. In 1990, she won the modelling competition Gadis Sampul, having earlier received the "Best Model Catwalk" award at the "LA Model Contest" in Bandung two years prior.