Last night official Oprah's Favorite Things actress Lindsay Lohan's US sobriety tour swept into Letterman for an awkward but earnest segment about personal growth and a guy named Meditation Bob.

The call starts off as a cute prank, both on Oprah and on Lohan, who grows increasingly perplexed by what to do with the prop phone, and ends with Lohan apparently in tears because Oprah believes she's "doing okay."

Oprah also mentions she, Lindsay and Letterman share the same meditation coach, a throwback to a segment last year where Dave convinced Oprah to tell him the mantra Deepak Chopra gave her.

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[h/t Uproxx]