Bastille Font

Bastille stylized as BΔSTILLE, is an English indie rock band formed in 2010. The band consists of lead vocalist and pianist Dan Smith, keyboardist Kyle Simmons, bassist and backing vocalist Will Farquarson, and drummer Chris "Woody" Wood. The band's name is derived from Bastille Day, which is celebrated on July 14th in France.

The above is the Bastille logo that can be seen on their releases like Bad Blood, All This Bad Blood etc. In the logo, you can see a sans serif font called BastilleFont, which according to their website is their official font. There are a few alternatives that look similar to the BastilleFont that you might try since it is not available for download such as Century Gothic Bold or Futura Medium.