KBS 2TV's "Happy Together" recently celebrated its 500^th episode. Hosts Yoo Jae Suk, Jo Se Ho, and the rest were given the chance to call their celebrity friends.

As reported by All Kpop, KBS 2TV's "Happy Together" celebrated their commemorative episode on Thursday, May 25. This was the show's 500^th episode.

During the episode, hosts were given the chance to call up their closest celebrity friends. Being close friends with Lee Hyori, Yoo Jae Suk decided to call the singer/actress.

Yoo Jae Suk then started to reveal the fact that Lee Hyori can be really difficult to contact. This is despite the fact that both of them are good friends.

After a few calls, Lee Hyori really did not respond to Yoo Jae Suk. This made co-host Jo Se Ho call up Lee Hyori's stylist Yoni.

Yoni then revealed that Le Hyori is currently busy on working on her new album. The stylist also revealed that at the moment of call, Lee Hyori was at Jeju Island doing yoga.

Lee Hyori was once a host of the show: She was among the first batch of "Happy Together" hosts when the show debuted in 2001.Both Yoo Jae Suk and she developed their friendship during the first years of the show.

In other news, Yoo Jae Suk repays the boy who shared his snacks with him (and his 3 shadows) during the April 29 episode of "Infinity Challenge". According to Soompi, the selfless young man was identified as Yook Seung Woo.

Instead of following the rules of the "Hidden Card" mission of the May 13 episode of "Infinite Challenge", Yoo Jae Suk deviated and instead chose to repay young Yook Seung Woo's good deed.

Yoo Jae Suk first bought a gift for Yook Seung Woo. After which, the host invited the young lad and his parents for a meal.

The "Hidden Card" mission was actually for Yoo Jae Suk and the other participants to do something "YOLO" for themselves. Yoo Jae Suk instead grabbed the opportunity to give back to the young lad, which made the boy happy beyond words.