(www.onecountry.com)  Halloween is always filled with surprises— but “The Voice” coaches dressed in costumes singing Blake Shelton’s hit song “Honey Bee” might be the greatest surprise yet.

Blake Shelton, Adam Levine, Jennifer Hudson and Kelly Clarkson hit Hollywood Boulevard dressed as Batman, Robin, Catwoman and a penguin respectively, giving a fun, upbeat performance of the song.

They packed it with harmonies and stunning runs, proving why each of them are fit to be coaches on “The Voice.” But truly, Kelly Clarkson dressed as a penguin might be the most adorable and hilarious thing we’ve ever seen.