I agree, I'd something a little more creative in the warmup department. My favourite warmups apart from are not sappy love songs - "Rise (Leave Me Alone)" from BP54, and "Come to Me" from BP57. The only exception to this is I did like BP61 "Love Changes Everything" because I think it's catchy.
In theory, "Invicible" from BP60 should have been great because of the lyrics but I think the song sucked and worse, the choreography was terrible (down, up, down, up, huh?!)
I would like to start a class with something a little more empowering.
Free the body.
The mind will follow.