Firstly, take a look at our competitors to see their logos:
I'm looking for something really modern, with a great contemporary design that will attract our core 20-35 year old audience.
The logo should have the word "Oxygen" (with a lowercase o if you think it looks better), with oxygenradio.co.uk somewhere in the design too (but smaller).
The final design will need to provide an alt version with "oxygenradio.co.uk" replaced by "fresh hits", so please bear this in mind when designing.
There should also be some form of graphic.
I don't have any colour scheme in mind - will leave this up to you. The logo will mainly be seen online.