Pearl Jam’s Mike McCready and Screaming Trees’ Barrett Martin will come together to pay tribute to their former supergroup, Mad Season, and its one and only album, 1995’s ‘Above.’ McCready and Martin will perform with Soundgarden’s Chris Cornell, Pearl Jam drummer Matt Cameron and Guns N’ Roses Duff McKagan, as well as the Seattle Symphony and its conductor Ludovic Morlot. The ‘Mad Season Sonic Evolution’ concert will take place on Jan. 30.

But we already knew that, didn't we?

According to a recent Facebook update from PJ, there will be three more, yet-to-be-revealed special guests at the star-studded event. Check out the post below:

The concert will not only commemorate Mad Season, but it will also celebrate other Seattle greats, including Peal Jam, Nirvana and more.

The upcoming event is sold out, but Pearl Jam’s Vitalogy Foundation is giving away two tickets, plus $1,000 in travel expenses and a meet-and-greet with McCready and more of the event’s stars. You can enter the drawing here.

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