What band released their debut album on 2 September 2013 featuring the single “Settle Down”?
Settle Down (The 1975 song): "Settle Down" is a song by English rock band The 1975, released from their self-titled debut as the fifth single on 24 February 2014. The 1975 (album):  It was released on 2 September 2013 through Dirty Hit and Polydor.
The 1975