Girls’ Generation member Tiffany revealed that Yoona was the highest earning member of the group.

In the recent episode of SBS ‘Strong Heart’ on May 1, Tiffany picked Yoona as the member who earns the most.”

She explained, "Yoona is the highest earning member because of her drama, individual ads, and other individual activities. I am also beginning the promotional activities for TaeTiSeo so I’m looking forward to how it will go,” causing laughter in the studio.

Photo: SBS