Ariana Grande Sings 'And I Am Telling You' with the TNT Boys - Watch Now!

Ariana Grande Sings 'And I Am Telling You' with the TNT Boys - Watch Now!

This was such an awesome to watch – Ariana Grande gave the young singers, The TNT Boys, the surprise of a lifetime!

While the young contestants from The World’s Best were performing on The Late Late Show with James Corden on Tuesday night (February 19), Ari walked out on stage and started singing with them.

The boys were singing the song “And I Am Telling You” from the musical Dreamgirls. They auditioned on The World’s Best with another song from the movie, “Listen.”

Before singing, James explained that when he first met the boys, they freaked out because they knew he had met Ariana before.

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Photos: CBS
Posted to: Ariana Grande, James Corden, The TNT Boys