Key attended the press conference at the MBC Dream Center on March 20 for the upcoming season of variety program 'We Got Married - Global Edition.'  The producer revealed that while the Heechul couple was nicknamed 'Leg Couple,' the Key couple would be called 'Ugg Couple.'

He explained the reason for Key and Arisa Yagi's nickname: "I asked Key what type of woman he liked the least and he told me, 'I don't like women wearing Ugg boots.' However, Arisa Yagi came from Hokkaido where you can't help but wear Uggs."

SEE ALSO: SHINee's Key and onscreen wife Arisa Yagi get romantic for 'Cosmopolitan' & wedding pictorial

Key spoke up, "That was because I've never tried wearing Ugg boots before.  Arisa brought Ugg boots as a wedding gift.  She said we should wear them as a couple, so I tried them on and they were really warm and comfortable so that I overcame my repulsion for Ugg boots during filming.  This is thanks to Arisa; I thought, 'This is why she wears them.'"

The first episode airs on April 5 so make sure you watch to see the chemistry between Key and Arisa Yagi - or the 'Ugg couple.'