BTS' V is definitely rooting for the success of his best friend Park Bo Gum's upcoming new drama, "Moonlight Drawn By Clouds."

On Monday, the Bangtan Boys vocalist, 20, shared a photo of himself with the 23-year-old actor and a poster of Park Bo Gum as Crown Prince Hyo Myeong to celebrate the premiere of the latter's historical drama via BTS' official Twitter account. In the post, V urged his fans to watch and support "Moonlight Drawn By Clouds," writing: "Anticipate it!! 10PM kbs #MoonlightDrawnByClouds #FirstBroadcast #MonTue #Today."

Check out BTS' V's adorable tweet about Park Bo Gum and "Moonlight Drawn By Clouds" below:

The photo appears to have been taken on Sunday, Aug. 21 when the two close friends took some time off from their busy schedules and spent some time together. V and Park Bo Gum were spotted by fans at a movie theater in Seoul.

This isn't the first time the two popular Korean stars have shown their support for each other's work. Last year, V also posted a message to promote Park Bo Gum's hit drama "Reply 1988," while the actor was spotted attending a BTS concert in Seoul in November.

"Moonlight Drawn By Clouds" is set in the Joseon Dynasty and will follow the story of Lee Yeong/Crown Prince Hyo Myeong (Park Bo Gum) and Hong Ra On (Kim Yoo Jung). "A love letter that Ra On writes for a client brings her in contact with Lee Yeong, who is the Crown Prince Hyo Myeong (Park Bo Gum), the first son of King Sunjo (Kim Seung Soo) and heir to the throne. But neither knows the true identity of the other. As Lee Yeong becomes strangely drawn to Ra On, the crown prince’s eunuchs bring her into the palace as one of their own, giving her insights into palace life that no woman has seen before," read the drama's official synopsis.

Ra On will also meet several interesting characters in the palace, including the Lee Yeong's trusted confidante Kim Sat Gat (Kwak Dong Yeon), scholar Kim Yoon Sung (Jinyoung) and Lee Yeong's betrothed Jo Ha Yeon (Chae Soo Bin).

Directed by Kim Sung Yoon, "Moonlight Drawn By Clouds" was adapted from a web novel of the same title written by Yoon Yi Soo and "kk."

Meanwhile, V will also appear in an upcoming historical drama, "Hwarang: The Beginning," in which he stars alongside Park Seo Joon, Go Ara, Park Hyung Sik, SHINEE's Minho, Do Ji Han and more. The drama is set to premiere in December on KBS2.

"Moonlight Drawn By Clouds" premieres Monday, Aug. 22 at 10 p.m. KST on KBS. To watch new episodes of the drama, click here.