Darci Lynne Farmers ventriloquism skills are no secret. She won Americas Got Talent in 2017.

But the now-14-year-old performer gave the judges on Americas Got Talent: The Champions something they hadnt heard before on Monday: Her doing Italian opera. Or rather, her dummy bunny Petunia appearing to sing it.

Petunia hit those high notes on O Mio Babbino Caro like a pro, and she had a certain human to thank for that.

Judge Simon Cowell told Farmer, who returned as a wild card on Mondays show: This, for so many reasons, is your best-ever performance.

The two-part finale concludes next week.

Cowell, incidentally, will be sitting with two new judges when regular AGT convenes next season, it was announced Monday.

Julianne Hough of Dancing with the Stars and Gabrielle Union of Breaking In are replacing Heidi Klum and Mel B, Deadline reported . Terry Crews, who replaced Tyra Banks as host on Champions, will also take over her spot on the next AGT.