Invincible Youth

Season 1

The first season of the show involved Korean entertainers meeting weekly to work and learn about farming in a Yuchi-ri village in Hongcheon-gun, Gangwon Province in South Korea. This involved both agricultural work, interacting with members of an aging rural community, and competing in challenges involving agrarian or domestic tasks. As the show's popularity grew, the cast and crew began work to make their filming location a sustainable site for agritourism, enter produce in food competition, and promote environmentally conscious farming. Some of the products were sold within the local community, to the general public, or distributed as gifts.

The G7 girls initially included Narsha of Brown Eyed Girls, Sunhwa of Secret, Hyuna of 4Minute, Hyomin of T-ara, Sunny and Yuri of Girls' Generation, and Hara of Kara.

On Friday, May 14, 2010, the PD of the show Kim Ho-sang announced that Sunny, Yuri, and Hyuna would be leaving the show due to scheduling conflicts with their respective groups' overseas promotions. Their replacements were decided through private auditions with members of other K-pop girl groups.

On May 30, it was confirmed that After School's Jooyeon, f(x)’s Victoria and Kim Sori will become the three new members of G7 on Invincible Youth. Kim Jong-min (of Koyote) also became a semi-permanent member for a month under the moniker of being a "Variety show mentor" for the new members.

On the August 27th episode, it was announced that Kim Tae-woo will be taking a temporary leave of absence due to a surgery he is to receive for his throat. He vowed to come back to the show as soon as he makes a full recovery. Starting episode 44, Song Eun-yi filled in as a semi-permanent MC in Kim Tae-woo's absence. On December 8, 2010, it was revealed that Invincible Youth finished recording their finale episode. They had filmed for over one year, since October 2009.

In an interview with Star News on December 10, production director (PD) Kim Sang-ho said, "We're not discontinuing the show because of low viewer ratings. There has been a lot of conflicting schedules due to girl groups like KARA expanding their activities overseas. It was difficult to take out some of the fixed members, so we decided to end season one for now. There’s a lot of trust being placed on the worth of the Invincible Youth brand. After discussions with other producers, everyone agreed to end season one and go ahead with season two next year."

Season 1 Slogan: 청춘은 지지 않는다~ 청춘~ 불패 (Youth Don't Lose! Invincible Youth!)

Season 2

Executive producer (CP) Kim Ho-sang told Star News on August 31 that the second season will take place in a fishing village in Daebu Island, Ansan, Gyeonggi Province.

G8 members included Girls' Generation's Sunny and Hyoyeon, Amber (f(x)), Suzy (miss A), Bora (Sistar), Yewon (Jewelry), Ko Woo-ri (Rainbow), Jiyoung (Kara). Lee Soo-geun, Ji Hyun-woo and Boom served as MC's. Sunny is the only returning member from Season 1, although Hyoyeon, Jiyoung and Bora were guests during the previous season.

The first episode of Invincible Youth 2 premiered on November 12, 2011 in South Korea, while the international premiere on KBS World was on December 2, 2011.

Prior to the airing of the April 7th episode, multiple news reports were released confirming that cast members Lee Soo-geun, Ji Hyun-woo, Amber and Woori will be leaving the show. Season 1 cast member Kim Shin-young returned as an MC starting from the April 14th episode.

It was then later revealed that Sunny would also be leaving the show. As she was the only member from season 1, they agreed that she would stay on with season 2 until the program became somewhat stable. She left the show after the July 7th episode. Comedian Lee Young Ja was cast afterwards, starting with the July 21st episode.

Invincible Youth 2 stopped airing in mid-November due to scheduling conflicts with the cast members as well as low ratings. The final episode was filmed November 7 and aired on November 17th.

Season 2 Slogan: 청춘이여 영원하라! 청춘~ 불패 (Youth is Forever! Invincible Youth!)

Music

Season 1: During Season 1, a short clip of "I Can Do Better" by Avril Lavigne is played at the start of each episode. "Rockstar" by Miley Cyrus was used as an opening theme for a number of early episodes. A medley of songs by the American rock group Journey performed by the cast of the American television show Glee was used to open several of the final episodes. The ending theme of every episode is a track titled "All About You" by an English pop rock group named Mcfly.

Season 2: During Season 2 the ending theme for episode 1 through to episode 7 is "I'm Yours" by Jason Mraz. In subsequent episodes, the ending theme is "I Will" by The Beatles. After the cast change, it has since been replaced with promotions for PVs.