Im Seul Ong, most often credited in short as Seulong, is a South Korean idol singer, actor, and MC. He is the second oldest member of the boy band 2AM and is renowned for his singing abilities using falsetto.
In 2008, Seulong took part in Mnet's "Hot Blood". The program showed the intense physical training that thirteen male trainees had to go through to compete for the opportunity to debut in either a 4-member ballad group or a 7-member dance group under the label JYP Entertainment. After going through several elimination processes, Seulong was chosen to become a member of the 4-member ballad group 2AM.
On 31 March 2010, he made his acting debut as a supporting actor in the television drama "Personal Taste".