From Asher Roth himself:
The Greenhouse Effect Volume 2 remix competition is officially here! For the next three weeks on Ash Wednesday, I will unleash a new acapella from GEV2 for you to work your best remix on.
The lucky winner will be announced each Tuesday and will receive a year’s free SoundCloud pro account.
For your chance to get in on the action just download the acapella and then submit your remix to my group.