Chelsea Handler Freaks Out On 'Whitney'

Chelsea Handler is guest starring as psychiatrist Dr. Price on Whitney, and in this sneak preview of tonight's episode, it's clear that Whitney's dealing with no ordinary shrink.

Handler hilariously devours her own birthday cake using her hands – and unbeknownst to her she has an audience in Whitney (Whitney Cummings) and Alex (Chris D'Elia) -- who then suspect that the good doctor has some pretty serious issues of her own.

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Check out the video to see Handler's impressive cake-eating skills in action, and also a preview of the moment Whitney fans have been waiting for -- Mark (Dan O'Brien) and Roxanne (Rhea Seehorn) finally kiss!

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Whitney airs March 27, 2013 at 8:30 p.m. on NBC.