Rockstars of Tomorrow (Riverside) / "Theater Open Mic Night"

Both sources list this event, but neither confirms recent activity.

This location's own page shares the chain's boilerplate monthly-schedule wording (checked Sep 1, 2026) [s1]. That wording matches the Norco page, so the monthly schedule is shared marketing copy, not verified for this address. The page also carries a location-specific street address and a working sign-up form, suggesting upkeep beyond the shared copy [s1]. The chain's location list still shows this one as active [s2].