Lighting of the Bay at Newport Dunes Waterfront Resort & Marina, Friday 6 p.m.

Santa Claus himself will kick off the holiday season by flipping a giant switch to light more than 50 impressively illuminated and decorated Christmas trees situated in the tranquil waters of the bay.

Back Bay Bistro, 1131 Back Bay Dr., Newport Beach, CA; 949-729-1144

Merry-achi Christmas, Friday and Saturday, 8 p.m.

Featuring Sol de Mexico de Jose Hernandez; America's first all-female Mariachi - Reyna de Los Angeles. Price: $40-$76

Cerritos Center, 12700 Center Court Dr., Cerritos, CA; 800-300-4345

Christmas With Scrooge, Friday and Saturday 7:30 p.m.

This brilliant musical adaptation follows Scrooge through a series of strange and magical journeys, where he ultimately discovers the true spirit of the holiday season.

Musical Theatre Village in the Irvine Spectrum, 36-A Mauchly, Irvine, CA; 949-753-1996

Men Alive-Secret Santa, Friday and Saturday 8 p.m.

The all male chorus, Man Alive!, strikes a chord with their holiday show. Price: $ 37.50-$47.50

Irvine Barclay Theatre, 4242 Campus Dr., Irvine, CA; 949-854-4646

Green Party of Orange County, General Meeting, Sunday 2 p.m.

Who says holidays and politics don't mix?

Irvine Ranch Water District, 15600 Sand Canyon Avenue, Irvine, CA;714-647-2399