METALLICA: Get your rock star hair ready for heavy metal favorites Metallica. They're playing their first-ever show in Marin Friday at the Marin Veterans Memorial Auditorium in San Rafael. The band will donate all the proceeds from the concert to support the Marin History Museum's Marin Rocks.
FRIDAY NIGHTS AT THE DE YOUNG: For something on the opposite end of loud, why not stop by the De Young Museum? Listen to live music, poetry, lectures, watch films and just take in some calm, educational culture for the evening. The San Francisco landmark stays open until 8:45 p.m.
FOREIGN INVASION: The British are coming but we don't need Paul Revere to ride off in a storm. The rockers from the mother land, Brief Encounter, will play the Geary Theater, 415 Geary St., in San Francsico at 8 p.m. on Friday night. Tickets are still available.
GET WICKED: There's a story behind those witches in the Wizard of Oz. Broadway original musical Wicked tells the tale of two best friends who became opposites on the scale of good and evil. Take in the beauty of the historic Orpheum Theatre as you learn the history of the witches of Oz. The show runs all weekend, starting Friday at 8 p.m. The Orpheum is at 1192 Market Street.
ADULT'S DAY OUT: Enjoy your adults beverages do you? Head on out to Pier 45 in San Francisco and try over 40 handcrafted beers from seven artisian breweries and enjoy live music at the annual Brews on the Bay from noon to 5 p.m. on Saturday and Sunday.http://www.sfbrewersguild.org/
CELEBRATE CHOCOLATE: Indulge yourself at the Ghiradelli Square Chocolate Festival all weekend. On hand -- besides the delicious feature -- chef demonstrations, lessons in wine and chocolate pairings and ice cream sundae eating contests. The tasty celebration runs both Saturday and Sunday at, (where else?) Ghiradelli Square in San Francisco.
BASEBALL IS LIFE: Baseball fanatics have a home this weekend at AT&T Park. Not only are the Dodgers in town but every aspect of baseball will be broken down in depths unhealty for normal human beings. But baseball fans are not normal and that's why before, during and after the game Saturday, fans can explore the science of baseball. http://calendar.exploratorium.edu/index.html