Apt. is a pop-punk song by internationally famous artists Bruno Mars and Rosé. The song’s name is based off the Korean drinking game APT.

The song opens with the playful chant of the drinking game. The music video, co-directed by Co-directed by Bruno Mars and Daniel Ramos, showcases Mars and Rosé playing the drinking game and playfully dancing to the song’s catchy tune.

The surprise collaboration was a smash hit in Korea and abroad, despite being quite a simple song. Currently, the music video has accumulated over 440 million views on YouTube.