Complex sentence: On December 15,2015, his commercial debut single, titled "Panda", was released on YouTube and SoundCloud, and on iTunes, five days later before being re-released as of February 2016.
Split into simpler sentences: On December 15,2015, his commercial debut single, titled "Panda", was released on YouTube and SoundCloud. The song released on iTunes, five days later, before it was re-released as of February 2016.