[5] Yoo Dong-ho and Park Jae-won appeared on SBS's Star School in 2009 with other models such as Kim Woo-bin.
Member Yoo Jae-deok (J.D), appeared on Star King's 100th episode in 2009 as a part of a kid's rock band.
They released their debut mini-album in June 2011 called "We Are the One" as well as a music video for the song "Lover Boy" on 7 September 2011.
Members Son Yu-chang, Kim Seung-hwan, Lee Tae-woo, Hwang Doo-hwan, Hong Sung-ho and Song Seung-hyuk appeared on a food program called K-COOK.
On 11 May 2011, Apeace opened K Theater in Yebisu Garden Place in Ebisu, Tokyo and performed daily concerts until December 2014.
[10] From June 10 to July 1, members Hwang Du-hwan and Song Seung-hyuk appeared on HBC's program Sega Sammy Cup.
ONYX member Song Seung-hyuk did not travel with them because he was admitted to the hospital in Japan on March 6 due to pneumothorax.
ONYX member Hwang Doo-hwan became a regular host on season 2 of NHK's weekly program Hangul Class (ハングル講座), starting on April 1, along with Koichi Akira, Ai Haruna, and 2PM.
On December 4, JADE member Ha Geon-hee was removed from the group's activities due to allegedly dating a fan.
[18] On June 30, six members graduated from Apeace: Yoo Dong-ho, Park Jae-won, Mun Byeong-hun, Heo Chang-woo, Kim Doo-hee, and Lee Tae-woo.
[19] Apeace released a compilation album entitled "For You" on December 5,[20] featuring solo songs by members Kim Wan-chul, Yoo Jae-deok, Oh Se-hyeon, Jeong Young-wook, and Hong Sung-ho.
They announced that they would be joint managed by Universal Music & EMI Artists and that they would have regular monthly performances, starting with 【Apeace LIVE 2015 ♯0(ZERO)】 on January 25 at Tokyo Mielparque Hall.
Members Choi Young-won and Jeong Young-wook were cast in the musical On Air Night Flight, along with Teen Top's Chunji, U-KISS's Jun and Kevin Woo, and Supernova's Yunhak.
[25][26] In June, members Hong Sung-ho and Jung Young-uk were cast in the musical RUN TO YOU Street Life along with U-KISS's Soohyun and Jun, Supernova's Kwangsoo and Geonil, and Block B's Jaehyo and U-Kwon.
[27][28] Members Jee Hyun-sung and Kim Jin-woo enlisted in the military on February 24 and are scheduled to return on 19 November 2016.
[29] On March 3, it was announced that Min Jin-hong would rest indefinitely from Apeace activities due to poor condition of his knees and lumbar vertebrae.
[32][33] They performed at the anniversary concert on the 20th along with other artists such as Supernova, Kim Da-hyun, Crazy Ken Band, ZERO, and Tendo Yoshimi.
[36] Apeace performed at A-Nation's concert "Asia Progress~Future~" on August 6 at Yoyogi National Gymnasium, alongside artists such as Hazzie, Solidemo, Tensai Bonjin, and sh**tkingz with guests from AAA and Da-ice[37][38][39] They also performed at Meiji Jingu Stadium for the 2015 Jingu Gaien Fireworks Festival on August 11.