Jung earned the award for New Male Solo Artist for "이별 10분전 (The Sense of an Ending)" and Most Popular Karaoke Song of the Year for "먼지가 되어 (Becoming Dust)" at the 3rd Gaon Chart K-Pop Awards. He also earned Star of the Year at the MBC Entertainment Awards.

Jung Joon-young was born on February 21, 1989, in Jakarta. He grew up in Indonesia, China, Japan, France and Philippines. He is the youngest son of Jung Hak-chun and Choi Jong-sook. His father was an international businessman who travelled to many countries for his Business. Jung learned to speak five different languages such as English, Mandarin, Korean, conversational Japanese, and Tagalog. He couldn't enroll in a regular school due to frequent moves. He took private lessons for regular subjects such as Math, English, violin, and piano. He also got his fourth-degree black belt in Taekwondo.

In 2008, Starkim Entertainment selected Jung as a vocalist of LEDApple. As one of the original members, he went through the training process and even finished recording the debut album with the band, however, before Led Apple's debut in 2010, Starkim Entertainment discovered that Jung was already under contract with the previous agency which refused to release him and, thus, he was dropped from the idol rock band.

On October 10, Jung made his debut with the release of Jung Joon Young 1st mini album. The EP contained a total of six tracks, including the title track, "The Sense of an Ending" (이별 10분 전), and two songs that he participated in writing and composing: "Missed Call" (아는 번호) and "Take off Mask". The EP was a moderate success, ranking number one on both the daily and weekly chart of Synnara Record during its first week. In addition, "Spotless Mind" (병이에요) landed at the third place and "The Sense of an Ending" (이별 10분전) also took second place on MBC's Music Core.

During the Superweek, his low husky voice, appearance, and unpredictable character trait appealed to the viewers as well as the judges, especially one of the judges, PSY. Moreover, his collaboration with Roy Kim covering "먼지가 되어 (Becoming Dust)" by (Kim Kwang-Suk), which Jung changed the ballad to the rock version, became a big hit and the best duet audition song ever. After releasing, it achieved an "all-kill" on real-time charts and won the Mnet 20's Choice Hot Cover as well as 2013's Most Popular Karaoke Song of the Year at the 3rd Gaon Chart K-Pop Awards. Jung was at risk of dropping out several times, though he passed through into the finals by Psy's choice in the judge's final decision.

Thanks to his appearances on KBS2's 2 Days & 1 Night season 3, he won the "Top Entertainer Award in a Variety Show" at the 2014 KBS Entertainment Awards.

Jung Joon-young made his big screen debut through a light-hearted romantic comedy film Love Forecast, which was released on January 15. Jung next starred in The Lover, a 19+ drama aired by Mnet, playing an unknown musician who is both living with and dating a woman 12 years his senior. Later, he had a cameo in the 10th episode of the drama The Producers, with Roy Kim as an anti-fan.

A representative from CJ E&M announced that their contract with Jung expired in November 2015. Jung decided to not renew his contract with CJ E&M. On January 5, 2016, C9 Entertainment announced that Jung and his band officially signed an exclusive contract with their label, REALIVE.

tvN announced on March 7 that Jung will join their cooking show, 집밥 백선생 2 (Mr. Baek The Homemade Food Master Season 2), as one of the casts where he will learn from Baek Jong-won, a popular Korean chef, about the art of home cooking. On March 30, JTBC announced that Jung will team up with Kangin, Jeong Jinwoon, and Lee Chul Woo for a new reality show, Hitmaker, in which they’ll be travelling overseas to try other countries' Sports.