'After Lately': Dave Grohl A Little Freaked That Jen Keeps Tweeting Him (VIDEO)

Jen Kirkman is a huge fan of Dave Grohl, but she had a little difficulty controlling her enthusiasm on "After Lately" (Sun., 11 p.m. EST on E!). He wasn't in the room when she was sniffing his wristbands, but he did get all those Tweets she sent him on her way to the dressing room with the rest of the writing staff of "Chelsea Lately."

In fact, while he was excited to see them, he actually considered calling security when he saw that Jen was with them. When he asked her to leave, she got upset. "If I go, David, I'm not coming back," she threatened.

"Promise? Because that'd be super kick-a**, actually," he replied with a smile. She tried to get the gang to leave with her, but there was no solidarity there. They weren't going to suffer for her creepiness. So she left, reluctantly, and with more threats that were really just giving him more of what he wanted.

See which celebrity guest they harass next on "After Lately," each Sunday night at 11 p.m. EST on E!

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