targeted twitter 15,000 - this is easy

Advertising people this is easy! I am the Chairman of Psych Ward Media LLC and am looking to build a twitter following of 15,000 real people. We are a recording studio trying to gain a foothold in this industry. We are looking for a following of 15,000 people. We want both advertising agencies/people and musicians. We are looking for roughly 10,000 musicians or music industry people and 5,000 advertising. We are willing to be flexible +/- 1,000 either way in the ratio (anywhere from 9,000 to 11,000 is acceptable for musicians, the same applies for advertising) Examples of music industry are: musicians, record labels, radio stations, DJ's, Hip Hop/Rap artists, singers, songwriters, etc) This will double as both advertising and a way to promote our artists. We are willing to work with you on numbers if you can make these numbers fall within our geographic location. Also I'd be willing to give you kickbacks if we get a few jobs after the end of this project. my timeline is 4 weeks for this. I will pay at the halfway point and at the end of the project. If this works out for us we may come back for more.