Some context: Kim was born Han Jae-joon (hanjaejun; Han Zai Jun ) in Gongju, Chungcheongnam-do, South Korea. His real birthday, as revealed by his biological mother, was on 4 February, instead of 26 January. At a young age, he was given up for adoption by his biological mother to the Kim family, and his name was changed to Kim Jae-joong. When Kim was fifteen, he moved to Seoul by himself in order to take part in the auditions held by SM Entertainment.
On 17 January 2013, Kim released his first solo EP titled I/MINE, a rock-themed album which Kim penned all the lyrics to. The album debuted at the top of both the Hanteo and Gaon weekly charts in Korea. It was also met with resounding success throughout Asia, topping Taiwan's Five Music's Korean and Japanese music chart, Japan's Shinseido weekly chart and Yin Yue Tai's V chart for K-pop. It also topped the iTunes rock charts in nine countries. Additionally, the pre-released single "One Kiss" and lead single "Mine" topped both domestic charts and foreign charts, including a German Asian music chart.  On 26 and 27 January, Kim held two days of special concerts at the KINTEX Ilsan to celebrate the launch of the album, as well as his birthday. Kim then released a repackaged version of his album, titled Y which consists of contains two additional tracks: "Only Love" and "Kiss B" . The album was met with success and sold 50,000 copies upon release.  His first full-length solo album, WWW was released on 29 October 2013. A single titled "Sunny Day" was released ahead of the album and topped the iTunes EP chart in Japan. A repackaged version of the album, WWW: Remove Makeup was subsequently released in January 2014 and included the title track "Heaven", a pop ballad with label-mate Gummy. To promote his first album, Kim embarked on his first Asia tour which traveled to regional countries like Japan, Taiwan and China.  His second solo album, No.X was released on 12 February 2016. It topped iTunes charts of 39 countries around the world upon its release, and was named the most popular K-pop album in China for 2016.
How old was he?
A: 
Some context: Yusuf Islam (born Steven Demetre Georgiou; 21 July 1948), commonly known by his former stage name Cat Stevens, is a British singer-songwriter and multi-instrumentalist. His 1967 debut album reached the top 10 in the UK, and the album's title song "Matthew and Son" charted at number 2 on the UK Singles Chart. Stevens' albums Tea for the Tillerman (1970) and Teaser and the Firecat (1971) were both certified triple platinum in the US by the RIAA. His musical style consists of folk, pop, rock, and Islamic music.
On 15 September 2014, Yusuf announced the forthcoming release on 27 October 2014 of his new studio album, Tell 'Em I'm Gone, and two short tours: a November 2014 (9-date) Europe tour and a December 2014 (6-date) North America tour, the latter being his first one since 1976. On 4 December 2014, he played to his first public US audience since the 1970s at the Tower Theater in Philadelphia.  Yusuf performed two shows in early 2015: on 27 February at the Vina del Mar Festival, Quinta Vergara, Vina del Mar, Chile and on 22 April at the Wales Millennium Centre in Cardiff Bay, area of Cardiff, Wales, UK.  On 1 June 2016, Yusuf shared a new song called "He Was Alone" and its corresponding video. Part of his newly launched fundraising campaign for child refugees, #YouAreNotAlone, the song was inspired by a trip to southern Turkey's camps for Syrian refugees. He performed the song live for the first time in a special charity concert, his first show in more than a year, on 14 June 2016 at the Westminster Central Hall in London.  On 26 July 2016, Yusuf announced he would be part of the Global Citizen Festival held on 24 September 2016 in Central Park, New York, New York.  On 9 August 2016, Yusuf announced "A Cat's Attic Tour", his second North American tour since 1978, beginning on 12 September 2016 at the Sony Centre for the Performing Arts in Toronto and ending on 7 October 2016 at the Pantages Theatre in Los Angeles. The string of 12 dates roughly coincides with the 50th anniversary of his first single, I Love My Dog, and would "feature a limited run of stripped down, introspective performances." The tour included three shows in New York City (two shows at the Beacon Theatre and one show in Central Park at the Global Citizen Festival), his first shows in New York City since 1976. In keeping with his spirit of humanitarianism, he would be donating a portion of the revenue from each ticket sale towards his charity Small Kindness, as well as UNICEF and the International Rescue Committee in an effort to assist children affected by the current Syrian refugee crisis.
Did he do any other fundraising or charitable work?
A:
He performed the song live for the first time in a special charity concert, his first show in more than a year,