My Babysitter's a Vampire Season 2 Episode 9 Siren Song ( Air Date 2012-09-16 ) Genre Comedy, Action & Adventure, Sci-Fi & Fantasy, Mystery, Kids, Family category. Overview "Ethan and Benny discover that a local singing sensation may have a voice like an angel, but in reality she's a Siren - a mythical creature whose song brings out the self-destructive worst in anyone who hears it. They have to team up with Sarah, Erica and DJ Rory Megabat to form a band, and blow her off the stage at the school talent show.".