Gwyneth Paltrow [1] learned the hard way that sometimes knowing all of the lyrics to a song really does count. The 46-year-old actress and Goop founder stopped by The Tonight Show Starring Jimmy Fallon [2] on Wednesday, and the host roped her into a hilarious game of "Slay It, Don't Spray It." Together the two their knowledge of chart-topping pop songs, at the risk of getting sprayed in the face by a jet of water. Let's just say, both Gwyneth and Jimmy might need to brush up on their lyrics before they try playing again. Watch the funny game above, and see Gwyneth try to conquer an Ariana Grande [3] hit. Something tells us she had a few "tears left to cry" at the end of this one!