Seven had previously denied rumours that they were a couple in order to protect Park's privacy and let the relationship grow naturally.
on June 22, 2013 alongside Sangchu of Mighty Mouth.
He then released his debut album Just Listen on March 8, 2003.
Later that year, he received the Best Newcomer Award from MNET.
On October 14, he released the mini-album I Am Seven (stylized I Am Se7en), his first album in over four years, along with the title track, "Give It to Me", and its music video.
Seven accepted the lead role for the Korean drama Goong S, a spinoff of the drama Goong.
MNET described Seven as a super rookie who could only stand against Rain, although the two were friends back in their high school years, alongside Boom. On March 10, Seven's first single "Girls" featuring Lil' Kim was released through digital stores such as i Tunes and Amazon MP3.