Kelsea Balleirni reached the penthouse of late-night television this weekend with a debut performance on "Saturday Night Live."

The country-pop hitmaker performed two songs on the tastemaking sketch comedy show, including a stirring piano-and-vocals rendition of "Penthouse" — a standout number from "Rolling Up The Welcome Mat," the singer's surprise post-divorce EP that debuted last month. Ballerini, a 29-year-old Tennessee native, split from ex-husband and fellow singer Morgan Evans last August after a nearly five-year marriage.

Dressed in head-to-toe white, Ballerini belted, "Kissed someone new last night/ But now I don't know where you're sleeping, baby/ We got along real nice, until I wanted out, now I know you hate me."