So how much do idol artists make a year? Sure, it varies according to their popularity, the number of concerts and advertising deals, and the amount of performances they do off-TV. With JYP's recent moves in an effort to merge with JYP Entertainment, we can estimate just about how much their idol groups make.

The most notable artists under JYP Entertainment are 2PM, Wonder Girls and missA. According to the report that details the merger for JYP Entertainment, 2PM accounted for 75% of company profits in the past year, bringing in close to $20 million out of the total $25 million.

Out of the $18 million revenue that 2PM generated, advertising deals accounted for the greatest amount, close to $6 million. Album sales were around $4 million, acting fees around $2 million, while private event fees were mere $100,000.

The runner-up in revenues within JYP Entertainment was 2AM, who brought in close to $3MM, mostly from album sales.