Girls' Generation appeared on 'Yoo Hee Yeol's Sketchbook' this week and gave a blast to the past by performing one of their earlier hit songs "Kissing You"!  During this stage, they even went out to the audience to hand out candies.

They then showed their more mature vocals in "Goodbye," showing how they could sing songs of different genres.  Of course, they also went on stage for their current title track, "Mr.Mr."

In the interview portion, the members each cutely introduced themselves as they used to back when they first debuted and answered some fun questions with Yoo Hee Yeol. For one part, the girls were given lights that they would turn on for a bright green glow if they were given situations and thought it meant that man was interested in them. 

Of course for YoonA, Yoo Hee Yeol talked about a sunbae who kept picking the girl as his ideal type, making everyone laugh and cheer as this person sounded a lot like Lee Seung Gi.  

Check out all the performances and interview below!

SEE ALSO: "Almost too late to have children," Discussion sparks over Girls' Generation Members staying Unmarried as they approach their Late 30s