[8] In addition, Lim Hyung Joo had a first solo concert abroad in June 2003, at the New York's Carnegie Hall.

As of 2014, he is a spokesperson for the Korean Red Cross,[15] the Community Chest of Korea 'Fruit of Love' campaign,[16] the International Relief and Development World Vision,[17] the Korea Association YWCA, the Green Growth National Union, the UNESCO Korean National Commission's first goodwill ambassador for peace and arts,[18] the Promotional ambassador for 2015 Gwangju Summer Universiade,[19] and He is the Art-one Cultural Foundation founder.

[20] Art-one was established by Lim in January 2008 to celebrate the anniversary of his 5th world and 10th domestic debuts.

[21][22] In December 2010, Lim was awarded the United Nations Peace Medal for donating proceeds from a concert commemorating the 60th anniversary of the Korean War to descendants of veterans, becoming the first and youngest Korean to receive the award.

[25] In addition, Lim published his first essay, "Only One", with his mother in March 2005, and the book was ranked the top bestseller in Youngpoong bookstore.