於 1998 年成立，是香港最活躍及最破格的青少年樂團之一。樂團不單為 12 至 27 歲的年青樂手提供訓練及表演機會，更突破傳統音樂會界限，以具新意的表演形式、別出心裁的選曲及具挑戰性的音樂，增添樂團獨有個性，並着意培育樂團的成員對音樂的熱誠。
MYO 除演出古典音樂為主的音樂會外，亦主辦過一系列「飛一般」音樂會，多元化的選曲包括委約新作、流行和百老匯經典、本地以至海外的電影配樂，並特別配以舞台效果，令音樂會成為聲色俱備的特別體驗。而在 MYO 的音樂會中，更時常有不同的「小品」演出，由古典室樂到即興，全部由樂團成員組成的小組一手包辦，務求讓年輕樂手在水銀燈下盡情發揮他們的技巧和感情。
樂團參與過多齣音樂劇的現場伴奏，包括多次載譽重演的安徒生童話《童話王子》、廸士尼著名故事《阿拉丁》及法國文豪聖修伯里的經典故事《小王子》。樂團亦積極參與公益慈善活動，數度為「健康快車」及「慧妍雅集」作慈善演出。除了音樂會外，樂團曾出席不同的場合，如接受無綫電視、有線電視訪問，在蘭桂坊節、渣打馬拉松開幕等作街頭表演等等。與樂團合作過的音樂創作人包括金培達、陳光榮、褚鎮東、梅廣釗及向雪懷等，而樂團亦經常與本地音樂人包括古巨基、方力申、何韻詩、側田、Maria Cordero 及譚偉權等合作演出。
Being recognised as one of the most active and exciting youth orchestras in Hong Kong, Millennium Youth Orchestra (MYO) has presented a wide array of concerts with its unique energy and style. The orchestra is charged with a mission to nurture young musicians, providing them proper music training, bringing them performing opportunities and growing their passion in music.
The unique characteristics of MYO may be experienced through the “MYO in Concert” series, where the orchestra plays music from the classical repertoire, contemporary music, newly commissioned works, broadway classics and film medleys from Hong Kong and overseas. Special stage effects run parallel with music in exciting both the ears and the eyes. In a regular concert a select of musicians may perform in a “divertimento” segment, featuring music from chamber to improvised gig. The segment is often a showcase of the young musicians’ creativity.
MYO was founded in October 1998. Two-times winner of the Hong Kong Youth Music Interflows gold medal of youth orchestra presented by the Leisure and Cultural Services Department, the orchestra has since garnered many positive reviews. MYO has frequented various Hong Kong venues and performed in Beijing and Xinjiang. Upon invitation, the orchestra participated the Asian-Pacific Harmonica Festival and 60th anniversary gala concert of establishment of the People’s Republic of China. MYO was one of the venue partners of the Shatin Town Hall (2008-2012).
MYO is also frequently found in the orchestra pit, providing musicals with live accompaniment, including the stories of Hans Christian Andersen, Disney’s Aladdin and Antoine de Saint-Exupéry’s Le Petit Prince. The orchestra is also active in performing for charities, having raised fund for Lifeline Express and Wai Yin Association. From time to time MYO performs outside the concert hall and plays in TV stations, in upper central for the Lan Kwai Fong Festival and in the opening ceremony of Standard Chartered Marathon. The long list of composers who have worked with the orchestra includes Peter Kam, Chan Kwong-wing, Anthony Chue, Mui Kwong-chiu and Jolland Chan, and Hong Kong musicians Leo Ku, Alex Fong, Denise Ho, Justin Lo, Maria Cordero and Gary Tam.