"Stay With Me" Grammy Winner William Phillips on Tom Petty: "Our Hearts Sank"

You saw William Phillips, also known as Tourist, on stage with Sam Smith at the Grammys last night when they picked up their honors for the smash hit "Stay With Me." We caught up with William on the red carpet just before the show to talk about why Sam hasn't changed a bit during his quick rise to fame, how they wrote the song together in about 30 minutes, and how he felt when comparisons between "Stay With Me" and Tom Petty's "I Won't Back Down" were first made.