Logged onto youtube and saw this cute subbed short clip from my subscriptions.
Quick summary: Tiffany is asked what/who’s music she is practicing these days (or something along those lines. brief subs)  and before she can even answer..Sooyoung busts out in the infamous Lady Gaga chant. Tae joins in but switches the words a bit and adds in one of her typical silly expressions. Tiff lets out her heartmelting giggle and we’re all sitting here smiling like 😀 😀

If you’re wondering where that chant is from..