Jeon Ji-yoon and Aaron Pauley are both singers, but which was a member of the band Of Mice & Men?
Jeon Ji-yoon: Jeon Ji-yoon (born October 15, 1990), better known mononymously as Jiyoon or by her stage name Jenyer, is a South Korean rapper, singer-songwriter and actress. Aaron Pauley:  He is most prominently known as the lead vocalist and bassist for the American heavy metal band Of Mice & Men.
i don't know