A Perfect Circle have shared a new single, To Whom It May Concern, and announced an extensive North American tour for 2027.The band's second new release of 2026, To Whom It May Concern follows on from Starless, which was released in May. And guitarist Billy Howerdel promises that there's "more to come" from the alt.metal supergroup, who also feature Tool/Puscifer frontman Maynard James Keenan, Smashing Pumpkins James Iha, bassist Matt McJunkins, and Nine Inch Nails/Vandals drummer Josh Freese."It's exciting to finally get some new music out into the world," says Billy Howerdel, "and seeing Starless reach No. 1 at rock radio this week has made it even sweeter! The outpouring of support is so very much appreciated. To Whom It May Concern is next up! More to come."The band's North American tour will see them supported by Puscifer (April 13 to April 23, and April 25), and The Cult (April 27 to June 13)."Very much looking forward to pulling double duty through Canada with A Perfect Circle and Puscifer," says Maynard James Keenan. "Been way, way too long. New tunes, new dance moves, new hair hats. Figure it out. #figureitout"A Perfect Circle North American tour dates 2027Apr 13: Vancouver Doug Mitchell Thunderbird Sports Centre, CanadaApr 15: Calgary Scotiabank Saddledome, CanadaApr 17: Edmonton Rogers Place, CanadaApr 19: Winnipeg Canada Life Centre, CanadaApr 22: Niagara Falls OLG Stage at Fallsview Casino, CanadaApr 23: Niagara Falls OLG Stage at Fallsview Casino, CanadaApr 25: Detroit Fox Theatre, MIApr 27: Boston MGM Music Hall at Fenway, MAApr 28: Uncasville Mohegan Sun Arena, CTApr 30: Camden Freedom Mortgage Pavilion, NJMay 01: Newark Prudential Center, NJMay 04: Charlotte Truliant Amphitheater, NCMay 05: Duluth Gas South Arena, GAMay 07: Houston The Cynthia Woods Mitchell Pavilion, TXMay 08: Grand Prairie Texas Trust CU Theatre, TXMay 15: Nashville Bridgestone Arena, TNMay 17: St. Louis Chaifetz Arena,MOMay 19: Elizabethtown, KY [venue to be announced]May 20: Cuyahoga Falls Blossom Music Center, OHMay 22: Chicago Wintrust Arena, ILMay 23: Shakopee Mystic Lake Amphitheater, MNMay 27: Denver Red Rocks Amphitheatre, COMay 28: Salt Lake City Maverik Center, UTMay 30: Seattle Climate Pledge Arena, WAJun 01: Portland Veterans Memorial Coliseum,ORJun 03: Reno Grand Theatre at Grand Sierra Resort, NVJun 04: Daly City Cow Palace Arena, CAJun 06: Los Angeles Hollywood Bowl, CAJun 08: Chula Vista North Island Credit Union Amphitheatre, CAJun 10: Las Vegas Fontainebleau Las Vegas, NVJun 11: Las Vegas Fontainebleau Las Vegas, NVJun 13: Phoenix Talking Stick Resort Amphitheatre, AZTickets go on sale Friday, October 2 at 10 am local time.