Complex sentence: His third album "Tranquille" was released on 11 December 2015 with the track "Là c'est die" from the album became his biggest commercial success, reaching number 5 on SNEP, the French official singles chart.
Split into simpler sentences: His third album "Tranquille" was released on 11 December 2015. The track "Là c'est die" from the album became his biggest commercial success, reaching number 5 on the official French SNEP singles chart.