It's 2015! And Kanye West has decided to ring in the new year by releasing his collaboration with Paul McCartney. The song, "Only One," is a ballad that features Paul McCartney on the keys while Kanye sings from the perspective of his late mother, Donda West. It's a beautiful song. The instrumentation, songwriting, and song structure are pretty amazing. I am not sure if this song is the first official single from Kanye's upcoming album or the first in a number of collaborations with McCartney, but I am excited for what's to come. Check out the song above and buy it on iTunes here. Also, on Kanye's website, you can hear the song and see it displayed in a different medium. Enjoy.