Kelly Tang's compositions have been performed by international ensembles like the Russian National Orchestra, Warsaw Philharmonic Orchestra, Minnesota Orchestra, Baltimore Symphony Orchestra, Nashville Symphony, Nagoya Philharmonic, Ensemble Contemporain of Montreal, Band of Her Majesty’s Royal Marines (UK), and "The President's Own" U.S. Marine Band.
In Singapore, Tang’s works are performed by the Singapore Symphony Orchestra, Singapore Chinese Orchestra, Singapore Armed Forces Central Band, Singapore National Youth Orchestra, T’ang Quartet and Jeremy Monteiro. To celebrate Singapore’s 50th anniversary in 2015, Tang’s Concerto in Three Movements was commissioned for a premiere by pianist Lang Lang and the Metropolitan Festival Orchestra.
Tang received the COMPASS Artistic Excellence Award in 2008, and the National Arts Council (NAC) Creation Grant in 2025. For his contributions in the arts, Tang was conferred the Cultural Medallion in 2011 by the President of Singapore.