2NE1 and YG Family have sent PSY congratulatory flowers in the honor of his exclusive concert "HAPPENING" on April 13.

One of the sights that attracted attention at the location of Psy's concert was the area where congratulatory flowers from various celebrities stood. In the honor of Psy's comeback, K-Pop idol group 2NE1 even sent him flowers. 2NE1 members included the message, "I Don't Know If You Know That You Are the Best, From Gentle-Girls 2NE1" on the stand of flowers they sent.

Famous K-Pop singer Gummy also sent Psy a stand of flowers stating, "I Don't Know If You Know, I Should Have Done a Featuring, From Gentle Gummy."

Idol group Big Bang also sent Psy a stand of flowers with a message saying, "Our Brother is a Gentle Brother, From BIG BANG" to emphasize the title of Psy's new song, "Gentleman."

Other YG Entertainment artists, including Epik High sent Psy congratulatory stands of flowers as well. All of their comical messages regarding Psy's new song "Gentleman" drew attention.

Meanwhile, Psy's new single album "Gentleman" was released in a total of 119 different nations around the globe. "Gentleman" already ranks number 1 in nine different music charts in Korea and it has even been drawing attention internationally. Psy's concert, "HAPPENING" will be broadcasted live via YouTube.