On April 5, 2017, B.o.B announced Ether via Twitter and Instagram. It is his fifth studio album and dropped on May 12, 2017. The album title picks up the element theme from B.o.B’s previous works. After his four mixtapes WATER, FIRE, EARTH and AIR, which he released in the course of 2015 and 2016 and all put together in Elements, Ether, which, throughout history, has been postulated as the “fifth element”, seems to be an appropriate title for B.o.B’s next musical project.