Boston hardcore greats Converge have announced the majority of the lineup for the band's second annual Saddest Day music festival, which has expanded to a two-day event with multiple special guests.

The whole shebang is going down December 12-13 at Roadrunner in the band's hometown, without barriers and without overlapping sets.

Night one features Converge and two currently unannounced special guests, one of which will headline. Other bands performing include Cave In, Emma Ruth Rundle, Matty Matheson's Pig Pen, Deaf Club and Final Gasp.

Night two features Converge performing a special set for the 25th anniversary set of their landmark album Jane Doe. They will be joined by Chat Pile, Baroness, Agriculture, Reversal of Man, Habak and Fuming Mouth.

In addition to heavy music, the all ages festival will feature live art, food, vendors, nonprofits and more.

Tickets go on sale at 11 a.m. Thursday via AXS. For more info, click here.

Check out the fest's official flyer and daily lineups below:

Saturday, December 12

TBA Special Guest
Converge
TBA Special Guest
Cave In
Emma Ruth Rundle
Pig Pen
Deaf Club
Final Gasp

Sunday, December 13

Converge “25th Anniversary Jane Doe Set”
Chat Pile
Baroness
Agriculture
Reversal Of Man
Habak
Fuming Mouth