One Direction, Justin Bieber & More Do Christmas Carpool Karaoke & It Is The Best Thing You'll See All Holiday Season — VIDEO

You know the part in Dr. Seuss' How the Grinch Stole Christmas where the Grinch's small heart grows 10 sizes that day? I'm no Grinch, but that was literally me upon watching One Direction, Justin Bieber and more sing "Joy to the World" in a special Christmas-themed Carpool Karaoke with James Corden. It is literally the best gift of this holiday season and it is everything your inner fangirl could want. Like, Ebenezer Scrooge wouldn't even have to be visited by the ghosts of Christmas Past, Present, and Yet to Come if he saw this video. He would instantly be a better person just by experiencing it.

Here's the deal: The fine folks over at The Late, Late Show With James Corden spliced together a video of some of the host's Carpool guests belting out "Joy to the World." That means we have JB and 1D hitting some seriously falsetto notes while Carrie Underwood riffs all over the place and the iconic Stevie Wonder belts it out. Iggy Azalea even freestyles a holiday-themed rap. And did I mention that Harry Styles is wearing a Santa hat? Because Harry Styles is wearing a Santa hat, and that is the best gift of all.

The Late Late Show with James Corden on YouTube

Though the only thing that could make this better was if the artists turned it into a celeb-themed clown car and they were all in there together (forget gasoline — the star power alone would be enough fuel to operate the vehicle), this vid is amazing. Every artist got super into the gospel-themed version (when Rod Stewart throws his hands in the air rejoicing, you know you have a hit), including James Corden — and this video serves as an important reminder that the talk show host is actually a crazy talented performer himself.

Between Bieber and Liam Payne hitting those high notes (*melts*) and the fact that One Direction legit rolled down the window to heckle a couple making out on the sidewalk, it's not hard to see why Christmas Carpool Karaoke is the best present of this holiday season — and why everyone's reaction is basically akin to this:

Now all we need are videos of 1D and Bieber belting out the entirety of JB's Under the Mistletoe album. (Maybe next Christmas.)

Image: Giphy