Summertime is synonymous with baring skin, giving the ol’ grill a serious workout and attending as many outdoor music festivals as humanly possible (although not necessarily in that order).

This year, we have some whoppers to look forward to such as the Bonnaroo Music and Arts Festival (with the Dave Matthews Band, Weezer, Rise Against and Conan O’Brien (!!), Lollapalooza (with Soundgarden, Green Day, Lady Gaga and Phoenix) … but heyyyy, what about an all-chick music fest? It sure has been a while.

Back in the nineties, Canadian songstress Sarah McLachlan became so sick and tired of the antiquated practice among radio disc jockeys and concert promoters to never play two female musicians back to back that she established an all-female tour called “Lilith Fair”.

Within just one year, her little tour that could grossed $16 million, showing the big boys how it could be done – not only by raking in serious ka-ching with the best of ‘em but also by channeling a hefty $10 million toward charities in just 3 short years.

Things were all fine and dandy until the tour was given the kibosh, and now a full decade+ later, the good news is that the girls are back and more charitable than ever.

The 2010 Lilith Tour will feature powerhouse performances not only by McLachlan but also by Carly Simon, Heart, Rihanna, Sheryl Crow, Norah Jones, Mary J. Blige, Kelly Clarkson, Erykah Badu, Beth Orton, Colbie Caillat, Cat Power, Corinne Bailey Rae and even a few old favorites like The Go-Go’s, The Bangles, Suzanne Vega and the Indigo Girls.

To make the mercury rise even more, $1 of each Lilith ticket sold will be contributed to Alter Eco (a producer of 100% fair trade, organic and carbon neutral food products), To-Go Ware (makers of sustainable, waste-free, portable food containers and cutlery), Grameen America http://www.grameenamerica.com/ (offering micro-loans to entrepreneur hopefuls) and Better World Books (committed to repurposing old books and creating global literacy initiatives) – four organizations that create positive eco and social change – in an effort to sustainably fund Lilith Fair’s future non-profit partnerships.

Great music that helps to keep the little green guys afloat?!? What’s not to like about that?

Via USA Today