Curtis “50 Cent” Jackson experienced a power outage while celebrating his new Champagne brand, Le Chemin du Roi, at SBE’s Nightingale in West Hollywood.

After addressing the crowd and toasting to the success of his line of bubbly, as well as his hit show “Power,” the lights went out.

A source told us, “The entire neighborhood, for about a 20-block radius, lost power for about a two-hour period, which started at about 1:30 a.m., only 30 minutes before the venue was slated to close.”

Jackson didn’t let it end his night, with guests continuing to hang out via candlelight.