Welcome to Captain's Log -- your (semi) daily round-up of sci-fi randomness from around the web. Here's what's happening:

SciFi Wire shares some of John Barrowman's shnazzy "Single Ladies" moves. You know, Captain Jack Harkness.

Daniel Radcliffe, aka Harry Potter, is going to guest on The Simpsons to spoof the vampiric wonder that's Twilight, so says EW.

Plus, The Daily Beast shares the horror of Twilight tattooage, which isn't just girl fandom -- one set of guy/gal best friends branded themselves "lion" and "lamb."

Dying for the new Van Damme-led Universal Soldier? Quiet Earth alerts us all to the fact that it's now available for pre-order.

The Twitter Feed running for Production Weekly notes that the CW is still trying to adapt Warren Ellis' Global Frequency.

TVGuide shares a peek at Smallville's Hawkman.

According to The Guardian, The Lovely Bones test audience wanted more violence.

Was Jane Espenson edged out of Caprica? She tells io9 no, and hopefully she's not just being professionally nice.