李秀暻生於韓國統營市（近釜山）。早年於俄羅斯的Khaborovsk開始接受聲樂訓練，1999年畢業於當地的藝術學校後考進莫斯科音樂學院的聲樂系，師從K. Kadinskaya 教授，專攻獨唱和歌劇。2006年以優異成績畢業，隨即考進音樂學院的研究院。2009年十月完成研究院的課程，獲得音樂藝術博士學位。在學期間李秀暻曾在莫斯科音樂學院的大廳參與歌劇《波西米亞人》的演出（演唱Mimi一角），此外也舉行主題獨唱音樂會如《拉赫曼尼諾夫和他的時代》(2008年5月)和《德奧歌唱藝術傳統 – 從J.S. Bach到Richard Strauss》 (2009年10月)等。
經常應邀在俄羅斯、歐洲、韓國、中國、香港、澳門等地的音樂廳，博物館和教堂參與不同類型的演出。演奏曲目包括西歐和俄羅斯作曲家不同時期和風格的歌劇和歌曲，也包括韓國與中國的傳統與藝術歌曲。尤其醉心於Richard Strauss, Puccini和俄羅斯作曲家Tchaikovsky, Rimsky-Korsakov 和Rachmaninoff作品的演繹。
Soprano Su-kyoung Lee was born in Tong Young City (near Busan) in South Korea. Since an early age she started her vocal training in Khaborovsk, Russia, in 1999 after graduating from the Music College there, she came to Moscow and entered the vocal faculty of the Moscow P.I. Tchaikovsky Conservatory, class of Prof. K. Kadinskaya. She specialized in solo singing and opera. In 2006 she graduated from the conservatory with excellent results. After that she was admitted to the post-graduate school of the conservatory . In October 2009 she graduated from the post-graduate school and received her DMA (Doctor of Musical Art) degree. During her studies Lee performed in the Grand Hall of the conservatory, singing the role of Mini in Puccini’s “La Bohème”, also gave chamber theme recitals like “Rachmaninoff and his time” (May 2008) and “History of German vocal art: from JS Bach to R. Strauss”(October 2009).
Lee is an active participant of music festivals and concerts in various concert halls, museums, churches in Russia, Europe, Korea, China, Hong Kong and Macao. Her repertoire includes opera roles and art songs of Western European and Russian composers of various epochs and styles, and also art songs and folk songs of Korea and China. Lee is especially devoted to the interpretation of music by Richard Strauss, Puccini, and the Russian composers such as Tchaikovsky, Rimsky-Korsakov and Rachmaninoff.
In May 2008, Lee became a laureate in the Music Competition “VI Pushkin Festival” in Moscow. In June 2009, Lee won the 2nd prize in the International Music (Vocal) Competition “Art of the 21st Century” in Finland.
In October 2009, Lee finished her post-graduate studies at the Moscow Conservatory.