Grammy nominated singer Koffee has released a new single titled W featuring Atlanta rapper Gunna. The song, which was released Tuesday has already amassed more than 600,000 views on YouTube. It is also the number one trending song on the video sharing site. The song was produced by Izzy Beats, who is also responsible for her international hit Toast . Meanwhile, the 19 year old has been featured on the cover of British bi-monthly magazine, i-D Vice. In it, she confirms a collaboration with pop superstar Rihanna for her upcoming reggae inspired studio album.