Sakin ve alçakgönüllü ama hırslı kişiliğiyle tanınır.Babası "dini" sebeplerden evi terkedince annesi ve ablasıyla zorluklar içinde bir çocukluk geçirmiştir. Kendisini "ıssız bir ada", annesini ise bu adaya yol gösteren bir deniz feneri olarak tarif eder.Seven and the YG Family (including Big Bang, 2NE1, Jinusean, Gummy, PSY and Epik High) made an appearance on the now defunct MTV K, followed by three concerts in Washington DC, New York City, and Los Angeles, to celebrate YG Family's 10th Anniversary and to help promote Se7en before his American debut. Seven is a featured guest on Amerie's Take Control from her album, Because I Love It, which was released in May 2007. Seven worked with former CEO of La Face Records, Mark Shimmel and Grammy-winner Rich Harrison and Richcraft producer Lionell Davis on his first American album. The music video for "Girls" was also released on Myspace that same day.on Myspace and You Tube, this caused some changes in Seven's U. Seven began promoting his English songs through a U. album preview party tour with his first stop at the Hiro Ballroom in New York City on March 14, 2008 (produced by Swerve Media and Base NYC). Seven's "Girls" music video premiered on BET 106 & Park on June 2, 2009, which failed to receive much recognition.
Seven has recently revealed, by means of 2NE1's Nolza Japan Concert, that he is planning a comeback in Japan after his four-year hiatus since 2007.
After four years of training in singing and dancing, he made his debut in 2003 with "Come Back To Me".