MUSIC I: Grammy-award winning musician, film/theater actor, all-around great and funny guy, and father of the talented Rufus and Martha, Loudon Wainwright III, is promoting his latest album, Songs for the New Depression.

7:30 p.m. // Great American Music Hall (859 O'Farrell St) // $25-30

MUSIC II: It's the last night of SFPopfest 2010, featuring Cats on Fire, The Tyde, My Teenage Stride, Math and Physics Club, and Devon Williams, along with DJ Kid Frostbite (aka Mike Slumberland).

8 p.m. to Mid // Rickshaw Stop (155 Fell St) // $12-14

CLUB: Shake it at Lights Down Low, featuring Them Jeans, Oakland Booty Bass maestros Hottub, SF Electro demi-god Richie Panic, and LDL party-boy Sleazemore.

9 p.m. // Triple Crown (1760 Market) // free