Suri Cruise Is Officially Having the Best Holiday Season

"Taylor Swift!" responed Suri with the brand of cheer you'd expect from a kid intro'ing a pop star they really like.

Even the sound of her name earned screeching cheers, as iHeartRadio and FM station "Z-100" teased the performance throughout the night. She's closing things out on a high note in the love department, too, giving fans one of their first gratuitous glimpses of her holding hands with BF Joe Alwyn after more than six months of being publicly acknowledged as a couple.

"Well, thank you NY", she yelled after she kicked off her set with the thumping ".

Check out the full video of the duo introducing Swift below.

Z100 DJ Elvis Duran joined the pair on stage and said, "And now to bring out one of our favorite friends to end our show tonight, please welcome Katie Holmes and Suri Cruise!".

Swift performed hits like "Shake It Off" and "Look What You Made Me Do" during her set.

Katie Holmes - who was rocking a new pixie haircut with a cream turtleneck and gray distressed jean - took the stage with 11-year-old daughter Suri Cruise to introduce the "Reputation" singer as the final act of the night.

Fall Out Boy and the rising boy band Why Don't We also performed.