Diana五歲開始學習古典鋼琴，唱歌一直是她的愛好，十五歲到紐西蘭讀書的時候正式學習古典聲樂，兩年後赴澳洲讀大學主修音樂，主要以古典音樂和爵士樂為主。 在17歲的時候也組了搖滾樂團， 在澳洲各地表演，累積了豐富的表演經驗。從而開始接觸鑽研更多不同類型的音樂風格如jazz， soul， funk。
2007年, Diana 參加馬來西亞歌唱選秀節目"Project SuperStar"第二季，奪得亞軍。自此，開始了職業演唱的生涯，並著手第一張個人創作專輯的製作與發行。同時間也在當地各個不同的音樂空間及爵士酒吧如No Black Tie, Alexis Bistro, Hakka Republic...等地演唱。並與知名音樂團體ASIABEAT合作，在東南亞規模最大的爵士音樂節"Java Jazz Festival"(爪哇爵士音樂節)、"ASEAN Jazz Festival"和新加坡的"Asia On The Groove"演出。
2009 發行首張個人創作專輯。並與知名樂手Lewis Pragasam (Malaysia，陶喆演唱會鼓手)，Harry Toledo，Wendy Angerani和Chris Wright在亞洲地區進行唱片宣傳演出，並於2010年於華納唱片發行。
2010 與印尼知名音樂人/團體如Maria Da Silva、Nana Lee、Naomi Risamasu、Menu Hentia Santi 和 Brinets，由印尼著名製作/編曲人Idang Rasjidi操刀， 於9月發行音樂人創作合輯"Women In Love"。
2012 於華納唱片發行第2張個人創作專輯 “Sunny Days” ，這也是首次Diana自己擔任製作人，其中包含了4首全英文創作。
The musical journey of Diana Liu has taken her far and wide as a vocalist, composer, and producer. Having completed her high school studies in New Zealand, she crossed the Tasman Sea and settled in Sydney, Australia to advance her music education. Diana first enrolled at the University of New South Wales (UNSW), followed by the Australian Institute of Music (AIM) where she studied both Classical and Contemporary Voice. Under the tutelage of renowned vocalists Joy Yates and David McLeod, Diana graduated with a Bachelor of Music degree specialising in Contemporary Voice Performance.
It was also during her time Down Under that the classically-trained pianist took to the stage, lending her silvery vocals to numerous acts and bands, performing a variety of music genres including rock, jazz, and classical music at a host of distinguished locations including the Basement, Sydney Town Hall, and the iconic Sydney Opera House.
Diana’s debut album, containing 10 original tracks composed by the talented young songstress herself. The project subsequently took her across Asia, and featured an experienced crack team of sessionists led by drummer Lewis Pragasam (Malaysia), bassist Harry Toledo (Indonesia), keyboardist Wendy Angerani (Indonesia), and Chris Wright (Australia) among others. Distributed by Warner Music Malaysia in March 2010,”最美好的Diana Liu” was produced by Lewis Pragasam, and co-produced by Diana Liu.
Diana collaborated with a group of talented Indonesian musicians namely Maria Da Silva, Nana Lee, Naomi Risamasu, Menu Hentia Santi, and Brinets in Pijar Entertainment Indonesia’s production of the compilation album “Women In Love.” Helmed by famed Indonesian producer/arranger Idang Rasjidi, the album which headlines young and upcoming female jazz artistes was released in September 2010.
Spreading her melodious wings even further, Diana spent a significant portion of the year establishing herself in Beijing, China performing at the local music circuit, as well as at various corporate functions and jazz festivals.
Marked as another significant milestone in Diana’s musical career when she released her sophomore album “Sunny Days” under Warner Music Malaysia( 華納音樂 ). The self-produced album features an array of her original compositions including a strong suit of 4 English tracks, further showcasing her all-inclusive capabilities while cementing her status as an accomplished musician.