Sunny recently sat down for an interview to promote the upcoming animated film 'Rio 2' in which she voices the parrot Jewel, the wife of Siwan's character.

As the two had never met each other previously, Sunny revealed her thoughts on working together with Siwan for the first time: "We met each other to play husband and wife roles and then went to an interview together; it was really embarrassing and awkward." Before the interview, they had been complete strangers, but after working on the same animation together, they became much more acquainted. 

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She went on to praise her co-star: "He was very proficient, even in the ways he expressed himself.  He was sociable, good at managing the interview, and was comfortable to be around, so that was a relief."  

She was then asked if there was any jealousy among Girls' Generation members like there would be among siblings.  Sunny said, "I think we are different from siblings. When I was younger, rather than calling it jealousy, there was a time I concerned myself more with my personal ambitions, such as 'I want to do this,' 'I could do it better,' 'I want to sing a lot of songs by myself.'  Then, after we got to know one another really well and we came to like being one team, it was more like 'I think this person will do this part well.' In addition, if we think that it will help Girls' Generation, we encourage one another."

In relation to how long the group might last, Sunny said the girls received this question ever since their debut and after a while, realized that they were indeed a generation and wanted to remain so forever.