Ratu was an Indonesian music duo from Jakarta, Indonesia, formed in 1999 with Maia Estianty, then the wife of musician Ahmad Dhani, on instruments and Pinkan Mambo on vocals. Ratu entered the Indonesian musical scene with their first album, "Bersama" (Together) (2003). After a short break caused by Mambo's departure in 2004, the group formed anew with Mulan Kwok as vocalist. This new line-up proved more successful, with their most successful songs – "Teman Tapi Mesra" (Friends with Benefits) and "Lelaki Buaya Darat" (Womanizer) – released in this period; both song titles later became common terms in the Indonesian vocabulary. The group's second studio album, "No. Satu" (Number One) (2006), sold 200,000 copies on the day of its release, a record for an album by an Indonesian female group. The group dissolved in 2007.

Ratu was the most successful female Indonesian music group of the 2000s. Aside from their music, they were known for their physical appearance and wide coverage in infotainment media. Through their choice in costumes, Ratu popularised Harajuku styles in Indonesia. Throughout their career, the band won numerous awards; they were the first musical act to twice be declared "Artist of the Year" and "Group/Duo Artist of The Year" at the MTV Ampuh music awards. This success inspired numerous other groups to follow in their tracks.

Song lyric Teman Tapi Mesra TEMAN TAPI MESRA Ratu
Song lyric Lelaki Buaya Darat LELAKI BUAYA DARAT Ratu
Song lyric Salahkah Aku Terlalu Mencintaimu SALAHKAH AKU TERLALU MENCINTAIMU Ratu
Song lyric Aku Baik-Baik Saja AKU BAIK-BAIK SAJA Ratu
Song lyric Jangan Bilang Siapa-Siapa JANGAN BILANG SIAPA-SIAPA Ratu
Song lyric Dear Diary DEAR DIARY Ratu
Song lyric Kita Tidak Sedang Bercinta Lagi KITA TIDAK SEDANG BERCINTA LAGI Ratu
Song lyric Semakin Hari Semakin Cinta SEMAKIN HARI SEMAKIN CINTA Ratu
Song lyric Aku Pasti Kembali AKU PASTI KEMBALI Ratu
Song lyric Ratu Sejagad RATU SEJAGAD Ratu
Song lyric Dansa DANSA Ratu
Song lyric Didadaku Ada Kamu DIDADAKU ADA KAMU Ratu
Song lyric Turn Me On TURN ME ON Ratu
Song lyric Baru Jadi BARU JADI Ratu
Song lyric Seribu Cinta SERIBU CINTA Ratu
Song lyric Lelaki Yang Kumau LELAKI YANG KUMAU Ratu
Song lyric Aku Baik Baik Saja AKU BAIK BAIK SAJA Ratu
Song lyric Aku BaikBaik Saja AKU BAIKBAIK SAJA Ratu
Song lyric Bunda (Lagu Melly Goeslaw) BUNDA (LAGU MELLY GOESLAW) Ratu
Song lyric Dear Diary Versi 37 DEAR DIARY VERSI 37 Ratu
Song lyric Di Dadaku Ada Kamu DI DADAKU ADA KAMU Ratu
Song lyric Jangan Bilang SiapaSiapa JANGAN BILANG SIAPASIAPA Ratu
Song lyric Kamu Nomor Satu KAMU NOMOR SATU Ratu
Song lyric No  Satu NO SATU Ratu
Song lyric No Satu NO SATU Ratu
Song lyric Nomer Satu NOMER SATU Ratu
Song lyric TTM Akustik TTM AKUSTIK Ratu
Song lyric Teman Tapi Mesra Akustik TEMAN TAPI MESRA AKUSTIK Ratu