Yeah Yeah Yeahs, Santigold Rev Lollapalooza Day 2
Dave Vann

A few months ago, on all those blogs that seem to break and burn so many fledgling bands, the image of a young woman started appearing in banner ads. She was blonde, with long, shiny hair and wearing a tasteful polo shirt. But it was unclear whether the photo was taken 20 years ago or two weeks ago; whether she was in high school or graduate school; and whether she was happy, confused or stoned. In some ways, she was the preppy Mona Lisa, although some Internet detectives later found out that her name was Kirsten.

Listen to Vampire Weekend's 'Contra' album

Clicking on the picture directed users to the Web site of the band