Founders Grotesk, GT Super with Sweet Sans in action on taraguerardsoiree.com

Under the hood

.header-1 { font-family: "GT Super Display Light", Georgia, Times; font-size: 73px; font-style: normal; font-weight: 100; letter-spacing: 0px; line-height: 85px; text-transform: uppercase; color: #000000; }
.header-2 { font-family: "Sweet Sans SC", Helvetica; font-size: 14px; font-style: normal; font-weight: 400; letter-spacing: 1px; line-height: 17px; text-transform: lowercase; color: #000000; }
.content-1 { font-family: "Founders Grotesk Regular", Georgia, Times; font-size: 17px; font-style: normal; font-weight: 400; letter-spacing: 0px; line-height: 30px; text-transform: none; color: #000000; }

Sweet Sans is available from Typekit and Webtype.