The musician will perform acoustically with guitarist Steve Stevens at Amoeba Hollywood in the afternoon, it was announced today
Fans must buy a vinyl record of Idol's new EP, The Cage, that day in order to attend the live concert.
The show will start at 4 o'clock.
You can read more about the Amoeba Hollywood set here.
Idol will perform as the headlining act at The Roxy that evening, joined by Huddy and Willem Wolfe
Mitzi Spallas, who has worked as Idol's hair and cosmetics artist for more than thirty years
will use the proceeds from the performance to pay for cancer treatments.