Tiffani Thiessen stopping Saved By the Bell reunion

She lost the “Amber” and got all uppity. Tiffani Thiessen is holding up plans for a full-cast reunion of “Saved By the Bell,” according to reports.

Jimmy Fallon has launched a campaign to reunite the characters from the iconic 1990s Saturday morning show. Mark-Paul Gosselaar and Mario Lopez (both with much bigger careers than Tiff) have signed on, along with Mr. Belding himself (Dennis Haskins, who is… a nice guy with not a lot to do).

Thiessen, however, is a no go.

A source told Us Weekly, “In her mind, a reunion would remind audiences she hasn’t done anything for years. We’re trying to get her to do it because it would actually be great for her career.”