Their whole goal? To transport you back in time--to simpler, more melodic days, where vintage meets modern meets bluegrass. The Likes Of Us were second to take the stage at Beartrap Summer Festival this year.

Right before their third song, they asked the crowd, "Do we have any Katy Perry fans?" Then launched into a mash-up remix of the famous tune, Dark Horse.

Check out the video of it below.