Songfacts®:

• You're probably wondering what that crazy chant is that's running through the song. It's "apateu," which is Korean for apartment. Thus the title is the more universal "APT." which is an abbreviation for "apartment."
  
  The song is a collaboration between Rosé, a South Korean singer who came up with the "apateu" part, and Bruno Mars. In the song, Rosé invites Bruno for a wild time at her titular apartment.
  
  That Korean hook is the special sauce that makes the song stand out among all the other pop-punk anthems out there.
• Musically, "APT." departs from Rosé's earlier solo work, which leaned more toward introspective indie-rock and electro-pop vibes, as heard on tracks like "On The Ground" and "Gone." Here, though, we're firmly in pop-punk territory - vibrant, upbeat, and oozing with energy.
• The inspiration comes from a popular Korean drinking game called "Apartment," a game Rosé is particularly fond of. "It's my favorite," she said, "because it's simple, makes you smile, and instantly breaks the ice at any party."
  
  One fateful night in the studio, Rosé introduced her crew to the game, and the catchy chant stuck. Before long, she had the makings of a song on her hands. After Bruno Mars hopped on board, the whole thing took on a life of its own.
• Rosé and Mars wrote the song with Amy Allen, Christopher Brody Brown, Henry Walter, Omer Fedi, Philip Lawrence, Rogét Chahayed, and Theron Thomas. Mars, Cirkut, Fedi, and Chahayed produced the track.
  
  "I remember going home [from the studio] kind of freaked out. Is this OK, that I've written a song about a drinking game?" Rosé admitted to Vogue.
  
  She even asked her team to delete it from their phones. But by then, it was too late - they were already obsessed with the tune.
• Mike Chapman and Nicky Chinn are also credited as songwriters because the pre-chorus and the chorus interpolates a song they wrote called "Mickey," which was a hit for Toni Basil in 1981.
• "APT." was released on October 18, 2024, as the lead single from Rosé's debut solo album, Rosie. The record comprises 12 songs, all of which the K-Pop star co-wrote.
• The accompanying music video, co-directed by Mars and Daniel Ramos, features Rosé and Mars in full garage-band mode, taking turns on drums and vocals in matching black leather jackets against a bubblegum pink set. It's a departure from the meticulously choreographed, costume-heavy spectacle typical of K-pop visuals, but that's part of its charm. Fans have even noted that the black-and-pink aesthetic gives a cheeky nod to Rosé's group, BlackPink, adding yet another layer to the visual fun.
• "APT." stormed the charts, reaching #4 on the UK Singles Chart and #8 on the Hot 100. With this achievement, Rosé became the first female K-pop soloist to break into the Top 10 on both tallies, solidifying her status as a global superstar.
• When Rosie debuted at #3 on the Billboard 200 it became the highest-ranked album on the chart by a K-pop female soloist.
• Rosé titled her debut album Rosie as a nod to her close relationships. "Rosie" is the nickname her friends and family use, so naming the album this way was inviting fans into her inner circle, making them feel like part of her life.
• Rogét Chahayed explained how "APT." was made in an interview with Billboard. He accepted an invitation to a session with Rosé, and they assembled a team including Cirkut and Omer Fedi (with whom he co-produced), along with writers Theron Thomas and Amy Allen. Initially, they explored a slower, R&B-influenced sound, but after about 20 minutes they decided to switch gears and try something more upbeat.
  
  Rosé then began demonstrating the Apartment drinking game to Amy Allen. The game, which resembles patty cake, caught Theron Thomas's attention. He suggested incorporating it into the song. Rosé explained the game's opening chant, "Gaaame, start!" and the team decided to use it as the song's intro. The writers then began chanting "APT" over a drum beat. Chahayed and Fedi, focusing on the music, envisioned simple, one-note brass hits to create an open and cool feel. They then added chords to the pre-chorus and hook.
  
  Chahayed admitted that the song felt unique and special, but initially, he found it "very unconventional and strange - in a good way." He felt that neither he nor Rosé knew exactly what they had created when they left the studio that day. They simply recognized that it was cool but struggled to categorize it.
• "APT." has a melody and rhythm that's similar to "That's Not My Name," a #1 UK hit for The Ting Tings in 2008. The videos are kind of similar as well - The Ting Tings are a boy/girl duo and in their video they also lark about a drumkit.
  
  "We plan to have a word with Bruno Mars," Jules De Martino of The Ting Tings told Songfacts. "That felt a bit too close for comfort. Of course we are proud to hear our music style drop into new creations and like we were inspired we hope to inspire others but I wasn't a fan of how close this felt."
• "APT." won Song Of The Year at the 2025 MTV Video Music Awards. Accepting the award, Rosé said, "As my therapist tells me to do every day, I'd like to thank myself for not giving up, even in the toughest of times, and always remember, you've got you."