Jessica Sanchez Delivers Explosive Performance Of 'And I Am Telling You' (VIDEO)

And we thought last week was good...

On last night's episode of "American Idol," the final four were tasked with performing California-themed songs and personal faves they wished they'd written. 16-year-old contestant Jessica Sanchez took on two classic singers: Etta James ("Steal Away,") and Jennifer Holiday ("And I'm Telling You I'm Not Going").

While the part-Mexican, part-Filipina singer sang the first song beautifully (the gorgeous runs in her voice were the perfect fit for the blues song!), it was Jessica's second performance of "And I'm Telling You I'm Not Going," that showed off her phenomenal vocal range and solidified her frontrunner status in the competition.

Judge Jennifer Lopez raved about the explosive performance, saying: "This is crazy. With a performance like that, there's nothing to say. Your vocal ability, it's not something you see all the time."

And, Jennifer wasn't the only one who was moved by Jessica's powerful performance last night. Jennifer Holiday, the actress who made the song famous in the 1981 Broadway musical "Dreamgirls," tweeted about how much she loved Jessica's performance last night. "Yes, Jessica's performance of 'And I'm Telling You I'm Not Going' was absolutely flawless! An amazing voice," she tweeted.

Holiday also had this to say about Jessica. "Jessica Sanchez should be our next American Idol,."

We agree! Just give her the crown, already!