Changed My Mind Gold Rush Porter (Allison Bailey & Jen Agosta) Last Appeal Gold Rush Porter (Allison Bailey & Jen Agosta) Shadows Gold Rush Porter (Allison Bailey & Jen Agosta) If I Would've Known Gold Rush Porter (Allison Bailey & Jen Agosta) Gold Rush porter is … Allison Bailey and Jen Agosta, a songwriting duo based in Los Angeles, California.