Gnarls Barkley announced their first tour in eighteen years for November 2026, promoting their new album Atlanta, but it has emerged that only Cee Lo Green will perform—Danger Mouse (Brian Burton) will not be taking part. Live Nation clarified days after the tour announcement that the dates were always intended as a Cee Lo Green-led live run, with Danger Mouse never scheduled to participate, despite the initial social media announcement using the word "we" to suggest both members would perform.

The tour, titled "To Whom It Still Concerns," runs from 5 November in San Francisco through 28 November in Chicago, with a homecoming concert scheduled for Atlanta on 10 November. Cee Lo Green stated on social media that Danger Mouse is a producer rather than a performing artist and that both parties agreed Green could use the Gnarls Barkley name for the tour. The Live Nation promotional materials were quietly edited to include disclaimers clarifying Danger Mouse's absence, and the poster was modified to specify "CeeLo Green Performing."