He was raised in Valley Forge and went to Conestoga High School .
Gregg has one sister -- Abbe Foreman , a photographer in Philadelphia -- and mother , Vicki Foreman , who was a school teacher .
Gregg was raised in Valley Forge and went to Conestoga High School .
Gregg has one sister -- Abbe Foreman , a photographer in Philadelphia -- and mother , Vicki Foreman , who was a school teacher .