Ariana Grande and Babyface Cover Stevie Wonder's 'Signed, Sealed, Delivered'

In addition to Beyoncé, Lady Gaga, Pharrell, and John Legend, Ariana Grande saluted Stevie Wonder with a stripped-down performance during the CBS special “Stevie Wonder: Songs in the Key of Life — An All-Star Grammy Salute.”

Following an introduction from Jason Derulo, the pop powerhouse dueted with Babyface on an acoustic cover of Wonder’s ’70s hit “Signed, Sealed, Delivered (I’m Yours),” which landed Stevie his first Grammy nomination. With Babyface on guitar, Ariana belted out the classic tune, earning a standing ovation from the legend himself.

“Singing w/ babyface for stevie wonder was one of my favorite moments ever…. just the most surreal!” tweeted Ariana.

On Feb. 25, she will kick off her “Honeymoon Tour” in Kansas City, Mo.