In keeping with last season's nifty notion to have a different singer/group perform the title track, Showtime's Weeds has lined up another roster of eclectic acts to serve up Malvina Reynolds' "Little Boxes." While Randy Newman will kick things off with his own take on Aug. 13, other singers to listen for throughout Season 3 include Joan Baez, (not Martin) Donovan, ex-Spearhead front man Michael Franti, the hip-hop band The Individuals, Angelique Kidjo, the Latin band Kinky, experimental rockers Man Man, Persephone's Bees, the Shins and Billy Bob Thornton.