Well, it was about time Christina Aguilera developed the same allergic reaction to pants as Lady Gaga (damn it, someone is deliberately sawing peanuts in the pockets, aren’t they!) because she paid David Letterman a visit without them last night. Except, well, you know, she’s been wearing the same sparkly tights for more than 48 hours now (see appearance on the Today Show on the 8th). Krusty krabby patty, anyone? It’s…yummy?