One source claims the 18-year-old was actually bullied for being there -- apparently not everyone thought she earned the right to walk the shows!
The insider spilled:
Kate Beckinsale made an appearance last night on The Late Show with David Letterman at the Ed Sullivan Theater in NYC.
We're loving the glamourous look.
Though do U think she overdid it for a late night TV appearance?
[Image via C.Smith/WENN.]