2NE1's lovable unnis took a nap together.

Park Bom tweeted:

Napping....so hard kkk (Dara & Bom) http://t.co/qqJxwUrC84

� Bom Park (@haroobomkum) June 18, 2013

As you can see, Park Bom and Dara look like they're fast asleep, "napping so hard" in full makeup during their busy schedule.

Fans commented, "Park Bom and Dara are snoozing away," "They must be so tired," "So cute," and "Are they really busy?"

Aren't they adorable?