4minute's HyunA and beloved "bear",�Kim Tae Woo, will be visiting "Invincible Youth" for the show's one-year anniversary. It will be Kim Tae Woo's first time being on set since he left two months ago to start his new album. �His arrival for the recording on the 13th was apparently a complete surprise to "Invincible Youth" members. �Though Tae Woo and HyunA are definitely scheduled for the anniversary episode, producers are still in talks with SNSD to see if members Yuri and Sunny will have time to stop by as well. The producers added, "It's already been one year since the series started. �For the members who've made 'Invincible Youth' during that time, it'll be a meaningful get together." Source + Photo: Newsen