'Glee' star Dianna Agron seemed to be channeling Carrie Underwood a la 'Before He Cheats' in Sam Smith's 'I'm Not the Only One' music video, lighting her significant other's (Chris Messina) belongings on fire after she finds out that he is cheating on her.

The powerful video, interspersed with scenes of Dianna's character weeping over the infidelity of her lover and clips of the actual affair, is narrated by Sam Smith through the song, as he belts out the emotional tune into an old-fashioned microphone.

"You say I'm crazy, because you don't think I know what you've done," Smith croons. "But when you call me, baby, I know I'm not the only one."

The video definitely gets a little heated as Chris Messina's character's affair gets steamier and steamier, but Dianna's totally justifiable bonfire definitely keeps the flames going as well. And make sure to stick around to the end of the video -- it gets a little haunting.

Watch Sam Smith's 'I'm Not the Only One' video above.

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