"2012 (It Ain't the End)" is a song by British recording artist, Jay Sean, taken from the compilation album, Hit the Lights. It features Trinidadian rapper and labelmate Nicki Minaj, and is the album's lead single. The song was produced by OFM production team J-Remy and Bobby Bass. It was released to US radio stations and as a digital download to iTunes on 3 August 2010. The title is a reference to the 2012 phenomenon.

Bill Lamb from About.com gave to the single 4 stars (out of 5) and enjoying "The powerful vocal kickoff", "Expansive world party atmosphere" and "Nicki Minaj on guest raps". He also felt that the song was too close from "Down" and concluded that: ""2012 (It Ain't the End)" feels like a wise move for Jay Sean capitalising on the party success of his two prior hits "Down" and "Do You Remember" while moving into an even more expansive sound". Robert Copsey from Digital Spy gave an average review for the song, rating the song with 3 stars (out of 5), saying that: "'2012' finds him recreating the USA-slaying synthpop/R&B sound of his breakthrough – and there's no denying it's catchy as an October cold. Of course, no one expects lyrical innovation from a song about partying, but lines like "We gonna party like it's 2012" and "Party like it's the end of the world" are so timeworn that even Nicki Minaj struggles to breathe fresh life into it".

"2012 (It Aint the End)" debuted at number 50 on the Billboard Hot 100 for the chart week of 13 August 2010, later peaking at number 31. It peaked at number 34 on the US Pop Songs chart. On the Canadian Hot 100 chart the single debuted at 92 and climbed to a peak of 23, and a few weeks later fell off the chart. It debuted at number 40 on the ARIA Charts for the chart week of 26 August 2010. The song debuted at number nine on the UK Singles Chart, on the issue of 24 October 2010.

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