Songfacts®:

• This song finds Ariana racked with guilt as she admits to her ex-boyfriend that she's been unfaithful. She requests "one last time" with him as a final goodbye.
• The song was written by the songwriting team of Savan Kotecha, Rami Yacoub and Carl Falk, who penned most of One Direction's early singles, French dance music hitmaker David Guetta and Dutch producer Giorgio Tuinfort, who has worked with Michael Jackson, Gwen Stefani, Whitney Houston and Lionel Richie.
• Directed by Max Landis who is known for his 2013 film Chronicle, the video follows Grande making her way through panic-stricken street crowds with Earth on the brink of destruction from the fictional comet Eurydice. The singer's bespectacled beau is played by her former Victorious co-star, Matt Bennett.
• The Australian band Safia accused the video's concept and some of its ideas as being similar to their own apocalyptic clip for "You Are the One." Safia described the likenesses as an instance of when "big labels and/or big film firms steal ideas from small independent creatives who are trying really hard to make something different for a change." Landis acknowledged similarities between the two visuals, but denied that his ideas had been stolen.
  
  Here is the video for Safia's "You Are the One." Do you think the similarities are just coincidental?
• The song itself was the subject of a copyright infringement lawsuit. Grande and the other songwriters were accused by Canadian songwriter Alex Greggs of copying the chorus of his EDM tune, "Takes All Night," which he wrote for Skye Stevens. Greggs, who's worked with the likes of Lady Gaga, Justin Timberlake and Michael Jackson, reportedly sued for a cut of the track's profits.
• "One Last Time" was the last song that Ariana Grande performed on her Dangerous Woman tour stop in Manchester on May 22, 2017, minutes before the terrorist attack that killed 22 concertgoers in the foyer of the arena. This led to a fan-led campaign to push the tune to the top of the charts.
  
  The song entered the UK chart at #11 in the week following the tragedy, a new high after previously peaking at #24 in June 2015.
• Although the song was originally written about the end of a relationship, the lyrics have since become a symbolic farewell to the people who lost their lives in Manchester: As a result, the track was re-released as a benefit track on iTunes with all proceeds going to the We Love Manchester Emergency Fund. This time it peaked at #2 on the UK singles chart.