Complex sentence: In October 2010, MGMT gave three concerts in Paris at the Bataclan on 7th, 8th and 9th, the concert on day 8, was broadcasted on the Internet by Spotify.
Split into simpler sentences: In October 2010, MGMT gave three concerts in Paris at the Bataclan (7th, 8th and 9th). The concert on day 8, was broadcast on the Internet by Spotify.