On the nostalgic pro-choice benefit album Spirit of '73: Rock for Choice, latter-day female artists from Rosanne Cash to L7 (with guest vocalist Joan Jett) cover songs by '70s stars like Joni Mitchell, Patti Smith, and, uh, Olivia Newton-John. Biggest blast: Babes in Toyland's horn-spiked romp on Andrea True Connections' disco classic, ''More...More...More (Pt. 1).'' B

