The X Factor alumna covered a stripped-down version of 'Diamonds', which was released by the Bajan star last month.
The session - which was recorded by urban music blog That Grape Juice - was in support of Misha B's new single 'Do You Think of Me'.
The star's second single will be released in the UK on November 4, ahead of her debut album, which is due out in the near future.
Misha B will support Nicki Minaj's upcoming UK arena tour, which begins at the Capital FM Arena in Nottingham on October 21.
"I am probably going to be speechless," she previously said of the jaunt. "Although I'm scared at the same time, I am really looking forward to it."
Watch the music video for Misha B's 'Do You Think of Me' below: