By Dailymail.com Reporter
Published: 09:13 GMT, 20 February 2019 | Updated: 16:52 GMT, 20 February 2019
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She rose to stardom as a teen on Nickelodeon's Cat And Sam.
And Ariana Grande gave some pint-sized talents the surprise of a lifetime while dropping by The Late Late Show With James Corden on Tuesday night.
When the late-night host James invited the TNT Boys - a trio of young singers competing on the CBS competition The World's Best - to the show, the last thing they expected was a visit from their very favorite pop star.
Sing-a-long: Ariana Grande surprised the TNT Boys, a pre-teen trio of singers currently competing on The World's Best, with a visit to The Late Late Show With James Corden on Tuesday
James was thrilled to invite the boys back to the show to talk about their experience on the reality competition, calling the trio his 'favorite new boy band on the planet Earth.'
During their talk, he casually slipped in a story about how the trio - which is made up of 14-year-old Keifer, 13-year-old Mackie and 12-year-old Francis - seemed thrilled to first meet Corden.
It turned
