On Jimmy Kimmel Live 2 nights ago, Jimmy asked guest Alyssa Milano to explain Twitter and hashtags to him. In the video below, Alyssa explains that she tweets 12 to 22 times per day, that she likes to imagine Jimmy Kimmel naked when she’s nervous and that she uses a lot of hashtags — a big plus in my book.

A closer look at the actress’s Twitter stream reveals that she uses TweetDeck, an app she likes so much that she asks Twitter “not to kill TweetDeck.” The acquisition of Tweetie has made the future of other third party Twitter clients a little uncertain, but with support like this, the folks at TweetDeck have nothing to worry about.