Complex sentence: On September 20,2013, Gaga gave an update about the second single, stating that it will be released before the album and stated that "Venus" had been chosen as the second single.
Split into simpler sentences: On September 20,2013, Gaga gave an update about the second single, stating that it will be released before the album. Next month Gaga revealed that "Venus" has been chosen as the second single.