had been appeared on Happy together 4 as guest on Ep 563. He once again become a guest on Happy together 4 as special MC, showing his best MC-ing skills. Nam held his first solo concert Arbor Day from November 2 to 4 at the Hannam-dong Blue Square and all the tickets sold out in two minutes. On October 26, 2018, the musical The Days release Nam to be join cast of musical, held at Bluesquare Interpark Hall in Seoul from February 22 to May 6, 2019 as Kang Moo-young, where he played a presidential bodyguard who went missing 20 years ago along with a mysterious female companion. On December 13, 2018, Nam also released a solo digital single "A Song For You", which he performed in his Solo Concert. On February 12, 2019, Nam joined the judging panel of TV Chosun Trot Audition Program Tomorrow's Miss Trot as one of the masters, a competitive survival program for female trot singers. Nam went on to release his third EP A New Journey on May 7. Also he will begin his Asian Concert tour from April 27, Taipei following Macau on June 2. Nam also joined the musical Mefisto a lead role scheduled to run from May 25 to July 28. Nam concluded his second Solo Concert "Arbor Day 2" on August 10 and 11 in Seoul. On October 24, Nam enlisted for his mandatory military service, serving as a public service worker; he was unable to serve as an active duty soldier due to his shoulder injury from 2014. He released his second digital single on November 3 as a gift for fans during his military service. On August 5, 2021, he officially completed his service. On October 19, 2021, Nam made his comeback with his fourth EP With. On October 7, 2022, Nam became the final member of Infinite to leave Woollim Entertainment after deciding not to renew his contract, though he will still remain as a member of the group. Discography Extended plays Singles Other charted songs Songwriting credits Filmography Television series Television shows Web shows Theatre Solo Concerts & tours Concert Tour Arbor Day Arbor Day 2 Fan Meeting Awards and nominations Golden Disc Awards |- | 2017 | Write.. | Disc Bonsang Award | Soribada Best K-Music Awards |- | 2019 | rowspan="2"|A New Journey | Male Popularity Award | |- | 2019 | Art-Tainer Award