ZZ Top, shown performing in 2009, will play at Summerfest this year. Credit: DAN STEINBERG

By of the

Summerfest has announced a second group of grounds stage headlining acts that will perform at Summerfest 2012.

Performance dates, times and stage locations will be announced in mid-April.

The newly announced acts are ZZ Top; Kool & the Gang; Chicago; Ben Folds Five; the Roots; Paul Oakenfold; David Gray; Thievery Corporation; 311; Burton Cummings; Young the Giant; O.A.R.; Heartless Bastards; Phantom, Rocker & Slick; the Hives; Fountains of Wayne; and the Country Throwdown Tour featuring Gary Allan, Rodney Atkins, Josh Thompson and Sunny Sweeney.

Previously announced acts include the Steve Miller Band; the Avett Brothers; Common; Cake; Scorpions; Lupe Fiasco; Gary Clark Jr.; the Head and the Heart; Robyn; Eric Benet; Phil Vassar; Joss Stone; Awolnation; Brantley Gilbert; Tito Rojas; Gavin DeGraw; Atmosphere; Grace Potter & the Nocturnals; Halestorm; Mutemath; Fitz & the Tantrums; the Joy Formidable; La India; and Anthony Hamilton.

Summerfest will run from June 27 through July 1 and July 3 through July 8.