Usher, Michelle Chamuel

It's going to be pretty tough for The Voice's other superstar coaches to top this!

In this exclusive sneak peek from Monday's episode (8/7c, NBC), Usher invites a special surprise guest to help his artist, Michelle Chamuel, work on her rendition of Taylor Swift's hit "I Knew You Were Trouble." And who better to assist Michelle with the song than T. Swift herself?!

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"Things like this happen on Team Usher," Usher boasts to the camera. Watch the exclusive sneak peek below to see Michelle's priceless reaction and to hear Swift's feedback:

The Voice airs Mondays and Tuesdays at 8/7c on NBC. Which artist do you next want to see pop up on The Voice?