Girls' Generation's Tiffany took some time to hang out with her SM Entertainment labelmates and hoobaes Red Velvet!

Tiffany posted a short video clip to Instagram on June 2 as the "sixth member" of Red Velvet. The girls say, "Hello, we're Red Velvet," and seem pretty amused about the Girls' Generation member joining their group. 

Fans responded, "Tiffany and Red Velvet are so lovable," "They're so fresh," "I like seeing them together," and more.

In other news, Tiffany is the current host of Mnet's fashion and lifestyle show 'Heart_a_tag'.