"Just Fine" is a song by American recording artist Mary J. Blige. It was written by Blige along with producers Jazze Pha and Tricky Stewart for her eighth studio album, Growing Pains (2007), and released as the album's lead single in October 2007. A moderate commercial success, it peaked at number 22 on the US Billboard Hot 100 and number 16 on the UK Singles Chart, while also topping the Hot Dance Club Play chart. The track sold over 500,000 units in the United States alone and over 700,000 worldwide, making it eligible for gold status in the United States.

Critically acclaimed, "Just Fine" was nominated in the Best Female R&B Vocal Performance category at the 50th Annual Grammy Awards, held February 2008, as well as the Grammy for Best Remixed Recording, Non-Classical at the 51st Grammy Awards in February 2009. In addition, the song was ranked 41st on Rolling Stone's list of the 100 Best Songs of 2007.

Mary J. Blige said:

That song was written based on me having a good day. You know, I can have 20 bad days. I can have as many bad days as anyone. But I choose to say, 'I'm just fine.' Right now. So it's OK to have those days. So instead of coming with something ungrateful to the universe, how about I come with something first that's says, 'You know what? It's OK. Enjoy this day if you're having a great day.

The official remix was produced by Swizz Beatz called, "Just Fine (Treat 'Em Right Remix)", which sampled "Treat 'Em Right" by Chubb Rock and features Lil Wayne and Swizz Beatz on background vocals. There are four versions of this remix: The main remix version has Lil Wayne's verse on the beginning after the intro, the second remix version features a verse by Precise, along with Lil Wayne, the third remix version has Lil Wayne's verse on the near end of the song, and the fourth remix version is a no rap version, omitting Lil Wayne's verse.

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