"It was so nice to meet and sing with you guys!" Ariana Grande told TNT Boys' Keifer, Mackie and Francis after their joint performance Tuesday night

By Jen Juneau
February 20, 2019 09:45 AM
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The TNT Boys got the surprise of a lifetime on Tuesday night: a visit from Ariana Grande!

While performing on The Late Late Show, the boys — known for showcasing their vocal chops on The World’s Best competition series, which is also hosted by James Corden — were joined by Grande, who came out from backstage to chime in on their rendition of “And I Am Telling You I’m Not Going,” from the musical Dreamgirls.

“Oh my God!” exclaimed Francis, dropping to his knees onstage briefly before getting back up to wrap his arms around the “7 Rings” singer in an enthusiastic hug.

Both Mackie and Keifer’s eyes went wide as they attempted to continue singing, the former getting visibly emotional over Grande’s unexpected appearance.

The quartet fell right in vocal step with each other after the initial surprise, with Grande letting the young musicians take the lead on the iconic song and even bowing down to their skills at the conclusion of their impressive performance.

THE LATE LATE SHOW WITH JAMES CORDEN
TNT Boys and Ariana Grande
| Credit: Terence Patrick/CBS
THE LATE LATE SHOW WITH JAMES CORDEN
TNT Boys and Ariana Grande
| Credit: Terence Patrick/CBS

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Each of the boys shared photos from their meet and greet with Grande following their joint performance, showing the starry-eyed newcomers posing together backstage with the “Thank U, Next” hitmaker.

“You’re like, ‘Please stop talking, we wanna take a selfie,’ ” Grande joked in one adorable clip posted by Keifer, which depicted her taking fun selfies with each of the group members individually.

“It was so nice to meet and sing with you guys!” she told the group, who hails from the Philippines.

2018 MTV Video Music Awards - Red Carpet
Ariana Grande
| Credit: Kevin Mazur/WireImage

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This isn’t the first time Grande, 25, has surprised fans on late-night television. Last May, she offered encouragement to fans with singing aspirations during an appearance on The Tonight Show.

Jimmy Fallon teamed up with the “Dangerous Woman” diva to surprise some Arianators backstage at the NBC studios in New York’s Rockefeller Center. Believing that they were filming a fan compilation video, the unsuspecting individuals began belting out Grande’s hit “One Last Time” — only to be shocked mid-song by the chanteuse herself!