2010 - Not The End

Superstar/Pianissimo: Never Ending Love OST - Theme/Insert Song+Digital Single - Solo - April 12, 2010

1. Confession - Kim Kyu Jong

Destination - Mini Album 5 - Group - May 28, 2010

1. Let Me Be the One (그게 나라고..) [That's Me]
2. Love Ya
3. Crazy 4 U
4. 영원토록 [Until Forever] {lyrics by YS}
5. Let Me Be the One (Acoustic version)
6. Love Ya (instrumental)

Playful Kiss OST - Theme/Insert Song - Solo - September 7, 2010

1. One More Time - Kim Hyun Joong
2. One More Time (instrumental)

Cafe In OST - Musical+Digital Single - Solo - November 26, 2010

1. Love Is - Kim Hyung Jun & Kim So Jung
2. Love Is (instrumental)

Secret Package CD/DVD - Special Japanese Release - Solo - November 30, 2010

1. I Am - Kim Hyung Jun
2. Girl - Kim Hyung Jun

Smile Project: Message to Asia - Charity Concert Theme Song - Solo - December 3, 2010

1. Power of A Smile - Kim Hyun Joong

S-Wave 1st Present CD/DVD - Special Japanese Release - Solo - December 22, 2010

1. Girl - Kim Hyung Jun
2. Mars Men, Venus Women - Kim Hyung Jun

Official Site Christmas Gift for Fans - Special Release - Solo - December 23, 2010

1. Please Be Nice To Me (Remix) - Kim Hyun Joong

Present photobook/DVD - Special Japanese Release - Solo - December 27, 2010

1. Glamorous Sky - Park Jung Min