88-Keys has released the official studio version of his track "That's Life," which features the late Mac Miller as well as vocals from Sia.

Out today via 1801/Warner Records, it's the producer-rapper's first solo release in eight years and it comes as a demo, unfinished version of the song was leaked late last month.

"We all have to forge through the good, the bad and the ugly," said 88-Keys in a note about the song. "Mac came up with the concept for the song stemming from a conversation we had in the studio about relationships as we shared with each other what made the ones we were in at the time special. I played the song for Sia and she personally identified with the sentiments of the song and felt strongly about contributing her own thoughts on the subject matter. At the end of it all, my dear friend Mac and my newfound friend Sia helped me make a song to touch the world and help many deal with adversities we’re faced with, but 'That’s Life.'"

Hear "That's Life" below.