Watch: London Grammar Play “Strong” on Letterman

London Grammar Heads To The Late Show To Perform Their Latest Single "Strong"

Just a day after their big show at the Phoenix in Toronto, London Grammar got back on the road and headed to New York. The trio stopped by the Late Show with David Letterman to perform their latest single “Strong”. If you’ve yet to watch this group perform live, Hannah Reid proves how powerful her vocals really are.

Take a look at their performance below.