The first episode of "Invincible Youth" has been aired yesterday and it has become a big hit since its premier by topping the ratings chart.

As you all know,this show's main attractiveness is the G7 Formation,involving 7 sweet girls including SNSD's Yuri and Sunny,KARA's Goo Hara,Tiara's Hyo Min,BEG's Narsha,Secret's Han Sun Hwa and 4minute's Hyun Ah.

In the first episode,you can see how the girls look like when they just wake up from a sound sleep,i have prepared all the videos showing the girls' wake-up look below,who do you think is the cutest among all?