MILWAUKE - Summerfest officials Wednesday announce the lineup of headliners slated for the Miller Lite Oasis during Summerfest 2007. The Miller Lite Oasis underwent a renovation in 2006 that expanded the stage and nearly doubled its standing and seating capacity. The stage will feature the following headlining performers during this year’s 40th Anniversary celebration: June 28: Violent Femmes June 29: O.A.R. June 30: Goo Goo Dolls July 1: Sister Hazel July 2: Heart July 3: Buddy Guy July 4: The Black Crowes July 5: All-American Rejects July 6: Augustana July 7: TBA July 8: Lupe Fiasco Officials said the headliner for July 7 and all show times will be announced in the near future.