James Corden has officially joined Instagram!
On Wednesday, The Late Late Show host debuted his first picture on the popular social media app, which featured a very special celebrity guest and racked up an impressive 21.5K likes within one hour of appearing on his page.
WATCH: Selena Gomez Is Officially the Most-Followed on Instagram
In the photo, Corden poses in a car next to the queen of Instagram herself, Selena Gomez, teasing she'll be a future guest on his hit Carpool Karaoke segment.
"Getting a lift to work with this little chaffinch today!" the 37-year-old talk show host captioned it. "This is my 1st Instagram post!!!!"
And it looks like it's officially happening -- CBS confirmed that the "Hands to Myself" singer's segment will air in late June.
As ET previously reported, Gomez became the most-followed user on Instagram last month, followed closely behind by her bestie, Taylor Swift, and ex-boyfriend, Justin Bieber.
WATCH: Justin Bieber Appears on James Corden's 'Carpool Karaoke' for the Third Time
The brunette beauty -- whose account boasts 74.5 million followers -- took to Snapchat to share the exciting news with her fans, simply stating, "Hey guys. I'm officially the number one most followed on Instagram. Thank you!"
Gomez recently sat down with GQ magazine where she candidly talked about growing up in the spotlight.
"I didn't have the opportunity to figure out my life without people having an opinion every step of the way," Gomez, who got her big break while starring as Alex Russo on Disney's Wizards of Waverly Place when she was just 15 years old, explained.
Now, the 23-year-old actress turned singer is all grown up and clearly proves that by appearing topless in the glossy's May issue. To hear more (and see the sultry pics!), watch the video below.
WATCH: Selena Gomez Goes Topless for Stunning 'GQ' Photospread