Sarah Chalke smiled for the cameras while stopping by The Late Show yesterday to meet David Letterman for the first time. The How I Met Your Mother [1] and Scrubs [2] star had Buzz laughing at the TCAs [3], and last night was no different — Sarah joked about having a round face and told a funny story about losing her engagement ring, while Dave shamelessly flirted. Sarah's quirky charm and attitude were endearing as usual, so it's no wonder she scored a spot on our 10 Most Underrated Actresses list [4].

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To see the video of Sarah's interview and more photos, just .

Source [12]