I don’t know if Willie Nelson ever thought he would be doing a concert with Nas, but thanks to this year’s Rothbury Festival, it has come into fruition.

The second edition of this now annual festival, which describes itself as a “sustainable camping festival revolution celebrating art, music, action” is taking place this summer in Michigan at the Double JJ Ranch from July 2nd to July 5th. A Garcia-less reincarnation of the legendary Grateful Dead will also be playing at the concert, along with the equally iconic Bob Dylan. (Hopefully they won’t collaborate and perform some of their tiresome Dylan and the Dead material). Tickets go on sale this Friday, March 20th.

It seems that the concert’s bread and butter is jam bands, with notable jam acts like The Disco Biscuits, Railroad Earth, The String Cheese Incident, Sound Tribe Sector 9, and the always-entertaining Les Claypool all set to perform, along with a handful of other jam bands.

But the act that could truly make the concert memorable is a guaranteed-to-be-interesting joint performance featuring Nas and Damian Marley. The two are reportedly working on a collaborative album together which will hopefully see the light of day sometime this year.

A lot of indie rockers will also be making an appearance, including Broken Social Scene and Cold War Kids. Girl Talk will also be spinning the discs, which will definitely be worthwhile. Additionally, Femi Kuti and the Positive Force, a seminal jazz outfit from Nigeria, will play, as will Jamaican reggae mainstays the Maytals.