The greatest club to ever walk this earth. A band of 4 studs who are money (noted by the dollar sign). SC$E stands for Singles Club 4 Ever. The 4 is interchangeable with its <shift><4> counterpart, the dollar sign ($). Coincidence? I think not.
SC$E can also be used as an adjective, similar to "cool" for those born in the 60's. Example:
"Wow, look at those fellas...they're SO SC$E!'