Girls' Generation talks about the Wonder Girls and writing their own songs on 'Sketchbook'

The episode hasn't aired yet, but the show has given a few previews as to what the girls shared.

When asked about the Wonder Girls', Yuri replied, "Not too long ago, we met them at a broadcast station and we talked. It felt like we were all comrades together."�Seohyun added, "They changed their genre, and it was really cool. We've promoted together for so long, so it's an out-of-the-ordinary feeling."

The girls also talked about their ambitions for releasing songs they've personally written or composed.�They shared, "We've tried a lot, but the company rejected them all. We think we have to add the lyrics 'an unknown world' or 'goddesses of fortune'," making the audience laugh.

About her composed song "Bittersweet & Crazy", Tiffany shared, "I wrote the lyrics staring at a wall for 10 hours."�She also performed an acoustic version of her song, surprising and impressing MC Yoo Hee Yeol and the entire audience. We can't wait to see her perform it!

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Their episode airs on September 5 at 12:10am KST!