On her date with Ben, Rowena claims to have been a dancer with the Royal Ballet (after checking to make sure Ben doesn't follow ballet so he wouldn't call her bluff). The actress, Ruth Connell, did in fact dance with the Scottish Ballet.
Vince and Tommy of Ladyheart are very likely named after the now-retired band Mötley Crüe.
Vince is the lead singer of Mötley Crüe and Tommy is the drummer. Ladyheart also has Vince as lead singer, and Tommy on the drums. The one guitarist also looks fairly similar to bass guitarist Nikki Sixx. And finally, Crowley says "Why in hell would you want to rule over a Motley, witless crew of demons."
Vince is the lead singer of Mötley Crüe and Tommy is the drummer. Ladyheart also has Vince as lead singer, and Tommy on the drums. The one guitarist also looks fairly similar to bass guitarist Nikki Sixx. And finally, Crowley says "Why in hell would you want to rule over a Motley, witless crew of demons."
First time in the series that Rowena wears pants instead of a floor length dress.
Vince Vincente's aging rock band was appearing in Cleveland. This could be a reference to Spinal Tap, an aging rock band who started their stage show with "Hello Cleveland!" at every city they played. Except Cleveland.
This episode takes place in Aldrich, Missouri.