I would love something a bit cheesy but not too cheesy!!I want something that will make the crowd go wild over!!I want something that I can add a sexy upbeat dance routine to!!Any ideas??

I'm past being a teenager but I would recommend
http://www.gabriellacilmi.com
so. this is sung as a slow slinky kind of a song.
It looks like Ms Cilmi does not like men.
so.. it would be easy to add a tempo or a 'beat' as you young folks say, and instead of a wistful, yea, mischievous delivery give it a suacy 'hey I'm a wicked girl' delivery.

How about 'That's Not My Name' by Ting Tings - Its not cheesy, and you can get a good routine to it.

Or you do 'girlfriend' by Avril Lavigne.

Freddy Mercury, We are the champions,where ever I seem to go it always has a good result, more so if you can be the final singer