Taking a page from the book of Justin Bieber, Saved by the Bell star Mario Lopez got a little nostalgic with his choice of attire. He tweeted, “Old school Kelly Kapowski shirt I was sportin today... Beiber and I have similar taste. Love my Tiff.” But Elizabeth Berkley, who played Lopez’ on-screen girlfriend Jessie Spano on the show, wished he went with different attire. “Ummm....jessie's NOT ok w/this!!" Berkley tweeted.