Answer: It's Lady Gaga from her 'Telephone' video! In the clip, she and co-star Beyonce play a pair of femme fatales on a killing spree, taking out a diner of unsuspecting victims including model Tyrese and the frontman of Semi Precious Weapons. Recently, Gaga hinted that their would be a continuation of 'Telephone' on her 'ARTPOP' album, so keep your fingers crossed, little monsters!

Watch the Lady Gaga 'Telephone' Video Feat. Beyonce