Last night (Jan. 6) on the 'Tonight Show Starring Jimmy Fallon,' notorious indie rockers the War On Drugs kicked off their new year with an epic performance of the song, 'An Ocean In Between the Waves' -- check it out below. Stick around through the end; frontman Adam Granduciel's guitar solo just bursts with energy.

'An Ocean In Between the Waves' appears on the band's 2014 album, 'Lost In the Dream,' which was awarded 'Best Alternative Album of 2014' by iTunes, and No. 4 on our year-end list.

Although the band already hit up 'Conan' and 'Letterman' with performances last year in support of the album, this one was by far our favorite. 'Lost In the Dream' is out now via Secretly Canadian.

The War On Drugs Perform 'An Ocean In Between the Waves' On 'Fallon'