Producer Ryan Jhun reveals how much he made with hit 'Produce 101' theme song 'Pick Me'

"After 'Produce 101' wrapped up successfully, I received another call during season 2.  I felt very pressured (because of the success of the first season)," he explained.

"While working on the new track, I happened to discover past tracks I wrote which were about 9-10 years old.  The track was originally called 'Moonlight', now known as the popular 'Pick Me' song."

SEE ALSO: Lee Kwang Soo talks about 8-year relationship with Lee Sun Bin "We won’t break up"

In regards to royalty fees, Producer Jhun commented, "The royalty fees were directly deposited on the day of the recording. I checked the deposited amount this morning and it adds up to about the monthly salary of a corporate worker."

He also mentioned, "Since the producing team sold more than 8 million copies, that's enough to buy an entire house."