Barbra Streisand and Ariana Grande blended classic and contemporary voices for one helluva surprise performance, and only 2 words come to mind -- like buttah!!!
The legendary singer was in the middle of performing Tuesday night at United Center in Chicago when, out of nowhere, Ariana -- who idolizes Babs, btw -- strolled onstage. Naturally, her surprise appearance drew a roaring ovation as they launched into Barbra's 1979 hit duet "No More Tears (Enough is Enough)." AG sang the legendary Donna Summer's part.
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You can tell Ariana's THIS close to losing it herself from excitement. Her review of the performance was pretty simple -- she wrote on social media, "Best night of my life."
After exchanging pleasantries, Ariana cracked a joke, "I'm gonna go pass out now. You're just gonna find 10 pounds of hair."
The "7 Rings" singer later posted a picture with Barbra and captioned it, "Cherishing this moment forever." It seems Ariana decided to stick around in Chi-town after her Sunday performance at Lollapalooza.
She had to wait a couple days to play out her dream ... but clearly, it was worth it.