How Girls' Generation shaped K-pop as we know it

To celebrate their 15th anniversary, the K-pop group Girls' Generation put out their newest album, 'Forever 1.' Today, we're taking a look back at their career and how they changed the standards for K-pop through music, choreography and beauty. Their impact doesn't stop at that — Girls' Generation's debut song is now being used to change the world, just not in the way they planned. Guest host Elise Hu discusses their legacy with music critic Tamar Herman and Korean film and culture scholar Michelle Cho.