Complex sentence: She released her first single, Testimony in 2015 which was produced by popular Nigerian producer, Rotimi Keys, and a year later, released, Igwe, and in 2017 has released 4 more singles as a build up to her debut album.
Split into simpler sentences: She released her first single, Testimony in 2015 which was produced by popular Nigerian producer, Rotimi Keys, and a year later, released, Igwe. In 2017, she has released 4 more singles as a build up to her debut album.