Lee Hyori recently tweeted a photo of 'Superstar K4' winner Roy Kim performing at the 2012 KARA (Korea Animal Rights Advocates) celebration.

Lee Hyori tweeted on the 7th, "Roy Kim singing tonight at the KARA year-end celebration", along with the above photo.

The photo shows Roy Kim performing with his guitar at the event, showing his support for animal rights protection, which has also been one of Lee Hyori's social issues that she has taken a stand on.

Source + image: Lee Hyori's Twitter