MUSIC: The Cat's Pajamas presents Hillbilly Hoedown, "a celebration of pitchforks, swamps, blue misty mountain, corn liquor, hayseeds and all that hard foot stompin' on an old barn floor to the sounds of bad ass banjos and vicious violins," featuring a huge line-up of performers.

8 p.m. to Midnight // Make Out Room (3225 22nd St) // $5

FOOD: This month's Iron Cupcake SF challenge is Herbs. Hm, lemon verbana, lavender, mint -- so many possibilities! Winners are picked for best taste and appearance, as well as most creative cupcake.

7 p.m. // Leland Tea Company (1416 Bush St) // free

LITERARY: Author Glen David Gold celebrates the release of Sunnyside on paperback, featuring Charlie Chaplin in 1916, the point in time when his fame is at its peak but his inspiration is at a low. The story presents a "dazzling cast of characters that take us from the battlefields of France to the Russian Revolution and from the budding glamour of Hollywood to madcap Wild West."

7:30 p.m. // The Booksmith (1644 Haight St) // free