hey, it could happen!

[rosa_acicularis]

While I would have been overjoyed to learn that the rumors of a Lady Gaga Doctor Who appearance were true, my first choice for a Yank pop singer guest star would be the fabulous Janelle Monae:

Something tells me she'd fit in just fine.

ETA: OMG. Apparently she's already been in an episode of Stargate: Universe, which -- um, no. Not even for her.