We kind of just trusted him — we definitely thought that he’d be able to bring something interesting to the role, and we loved Jessica’s work as well, so it all came together really fast. In fact, we cast them like two days before we actually shot the video, which was really quick and kind of a testament to how awesome Darren and Jessica are.
"Already Home" director, Isaac Rentz, on casting Darren Criss & Jessica Szohr. (THR.com)
Inside the Split-Screen Love Story of A Great Big World's "Already Home"

The music video follows the sometimes tumultuous, but almost-always adorable story of bi-coastal lovers, played by Glee star Darren Criss and Gossip Girl actress Jessica Szohr. Viewers peer into each of their lives via side-by-side shots as they go through similar events throughout their day, while Ian Axel and Chad Vaccarino perform onscreen.

Criss came to the video project after Glee covered A Great Big World’s “This Is the New Year” in January 2013. With a friendship forged, “it just kind of clicked,” said [Isaac] Rentz, adding that it was the actor who suggested that [Jessica] Szohr play his love interest.

“We kind of just trusted him — we definitely thought that he’d be able to bring something interesting to the role, and we loved Jessica’s work as well, so it all came together really fast,” Rentz said. “In fact, we cast them like two days before we actually shot the video, which was really quick and kind of a testament to how awesome Darren and Jessica are.”

Enlisting Criss for the video marks a full-circle moment for the twosome, as they called last year’s Glee cover “a life-changing moment for us. We’ll never forget the first time we saw Darren’s character Blaine sing the opening lines of the song. We were at our apartment with all of our family and friends, and in that one moment, millions of people were hearing those words … he’s one of the sweetest and most humble humans we’ve met.”

I really loved when we did “You Make Me Feel So Young.” I’m a big jazz standards guy, so that was fun for me. Yeah, that was fun. Yeah, that was really sweet, it was fun. It sounded really good, too.
—Darren Criss on his favorite Klaine duet of the season [x] (via jenndesq)
We’ll never forget the first time we saw Darren’s character Blaine sing the opening lines of the song. We were at our apartment with all of our family and friends, and in that one moment, millions of people were hearing those words … he’s one of the sweetest and most humble humans we’ve met.
A Great Big World on Glee’s cover of “This Is The New Year”. (THR.com)

janemarielynch: @DarrenCriss this should keep us trending. #GleeAlong