Two revered singer-songwriters – country giant Merle Haggard and alt-country hero Ryan Adams – are booked for October concerts in the Twin Cities.

The mercurial Adams will appear Oct. 13 at Northrop Auditorium, promoting his new album "Ryan Adams," due on Sept. 9 on Blue Note Records. It will be his first Twin Cities appearance since 2011 at the State Theatre.

Tickets, priced at $49.50 and $38, will go on sale at 10 a.m. Friday at Northrop.umn.edu and 612-624-2345.

Haggard will return to Mystic Lake Casino on Oct. 5. Tickets, priced at $39 and $49, will go on sale Saturday at ticketmaster.com.