The full audio for South Korean rapper Psy's latest song Gentlemen was released online Thursday and will be followed by a live concert held in Seoul that will stream live online for free on Saturday in the U.S.

The Happening Concert will take place in Seoul's World Cup Stadium on April 13 at 5:30 a.m. ET, and will stream live via Psy's official YouTube page.

Gentlemen was released Thursday and its full audio video can be seen below. The song is already available for purchase on iTunes. Reviews have been mixed thus far for the tune, which has been labeled a follow-up to Psy's widely popular Gangnam Style. The 2012 song, which debuted in the summer, is still the most-watched clip on YouTube. Its official music video has over 1.5 billion views.

One iTunes customer who purchased Gentlemen said under the "Customer Reviews" section, "I like this song, although this may not garner as much positive attention as Gangnam Style. Psy is a great artist so I look forward to more of his work, plus his new video."

Another posted the following: "I just heard it for the first time today 4/11/2013 and I love it! I was sitting in my chair jamming without even noticing I was doing it! It has a great beat! It's catchy!"

Gentlemen will also have its own dance, just like the "invisible horse" step that became a trademark following the release of Gangnam Style.

Psy told a Korean TV station on April 1 about Gentlemen, "The new song is extremely fun and ... I can't tell you about the dance but all Koreans know this dance - but (those in) other countries haven't seen it."

The artist, born Park Jae-Sang, is a graduate of Boston University and Berklee College of Music, according to iTunes. He began his music career in 2001.