Rihanna gets acoustic in her new song called "FourFiveSeconds". The Bajan songstress collaborates with Paul McCartney and Kanye West. "Might get a little drunk/I say what's on my mind/I might do a little time," she croons. "cause all my kindness/is taken for weakness." It's available on her official website, AceShowbiz reports.

Earlier this year, Kanye also released a duet with the former member of The Beatles. The rap star delivered lyrics from the perspective of his late mother Donda in an ode to North West, his little daughter with Kim Kardashian.

Both RiRi and Kanye are currently working on their respective new studio albums. The former is preparing to follow up her 2012 record "Unapologetic", while the latter is readying a sequel to his 2013 studio installment "Yeezus".