Summerfest announced today that Brooks & Dunn will headline the Marcus Amphitheater on June 29 at 7 p.m.

The Milwaukee stop is part of "The Last Rodeo Tour," the duo's final concert tour. Last year, Brooks & Dunn released "No. 1s ... and then some," which is a compilation of 23 No. 1 hits released over the last 20 years.

Joining Brooks & Dunn are Gary Allan and Kellie Pickler.

Allan is known for numerous country hits like "Best I Ever Had," "Nothing On But the Radio" and "Tough Little Boys."

Pickler was discovered on American Idol and has since become a country star and television personality.

Tickets go on sale Saturday, April 10 at 11 a.m. and will be available from the Marcus Amphitheater box office and via Ticketmaster.

All tickets include admission to Summerfest, which runs from June 24 to July 4.