Super Junior's Donghae, Eunhyuk, and Henry as well as Girls' Generation'sTiffany were spotted at the studio together!

Eunhyuk tweeted, "After finishing recording last night, Hen Dong Ti Eun," along with a SM family snapshot at the studio.

Donghae and Eunhyuk previously hinted that they were recording for their comeback as a subunit, and Henry and Tiffany visited them to show their support. Donghae and Henry look like twins in their matching outfits, Tiffany gives her wink smile, and Eunhyuk is a stand-alone fashionista in trendy leopard print.

The two Super Junior members got fans up on their feet with their past Japanese single "I Wanna Dance", so ELF can't wait to see what the duo has in store this time around.