'Nobody's Business,' the controversial collaboration between Rihanna and her former beau, Chris Brown, is an upbeat pop song that recalls classic Michael Jackson, based on a 90-second sample of the track that leaked this week.

Whether Breezy and RiRi are once again a couple is unclear, but they sure sound like it on the song, which portrays the singers as young lovers who don't care what the world thinks about their relationship. With a pop melody that blends in some old-school R&B vibe, Rihanna sings, "I sing it to the world, baby give me time / Imma be your girl, I wanna make you mine / And it ain't nobody's business / It ain't nobody's business / It ain't nobody's business / It ain't nobody's business / Just mine and my baby." That last line echoes a refrain from MJ's 'The Way You Make Me Feel.'

'Nobody's Business' is the latest shout-out to the King of Pop by Rihanna, who sampled 'Wanna Be Startin' Somethin'' on her 2007 hit 'Don't Stop the Music.'

Though Brown is still on probation for his 2009 assault of Rihanna, the two have been on much more friendly terms in recent months. Besides teaming up on remixes of 'Birthday Cake' and 'Turn Up the Music,' they got cozy together at a private party and RiRi gave Breezy a lap dance at a public Halloween event. But remember, it's nobody's business!

'Nobody's Business' appears on Rihanna's next album 'Unapologetic,' which arrives Nov. 19.

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