During the late '60s, this swinging Brazilian moved effortlessly from bossa nova to Tropicália's unhinged fringe. Costa whips up a bucolic Bahian buzz via Jorge Ben's "País Tropical” and delivers a wailing parody of a personal ad in "Meu Nome é Gal" (My Name Is Gal). And Tropicália never delivered anything sweeter than "Baby", her all-American anti-consumerist pop anthem with Caetano Veloso.