My clever punnage is failing me so here's the <a href="http://www.lilithfair.com/news/mary-j-blige-sheryl-crow-colbie-caillat-erykah-badu-keha-tegan-and-sara-miranda-lambert-metric-">link to the Lillith Fair annoucement</a> and the <a href="http://www.lilithfair.com/">homepage</a>. It's not clear yet what dates/cities GPN might play other than the vague "Summer 2010" - stay tuned for details.