Jonathan Lee “Jon” Siebels (amuru August 27, 1979) bu onye egwu America, mara amara dika onye egwu egwu nke otu Eve 6. Ọ ghọrọ akụkụ nke otu ahụ mgbe o zutere bassist wee duru onye na-abụ abụ Max Collins n'oge afọ ọhụrụ Siebels na Ụlọ akwụkwọ sekọndrị Crescenta Valley. Siebels bụ akụkụ nke otu egwu a na-akpọ Monsters Are Waiting, bụ nke na-eme ihe ngosi na mpaghara Los Angeles tupu Siebels na onye otu ọzọ hapụrụ otu ahụ. N'afọ 2010, o mere ma dekọọ Hesta Prynn solo mpụta mbụ EP Can We Go Wrong. Dị ka nke March 13, 2011, Siebels nabatara azụ na Eve 6 na ibe Facebook ha. Siebels bụ onye otu Party for Socialism and Liberation.