Singer/songwriter Hunter Hayes will be the opening act for "Splash into Country" at the RISE Up Foundation’s inaugural Rise Up Music Fest. The two-day festival is set for June 19 and 20 at Petersen Park in McHenry. Hayes, a five-time Grammy nominee, will open for Brantley Gilbert for the "Splash into County" concert June 20, which will also include the multiplatinum Grammy-winning Eli Young Band, will raise funds for a new splash pad in the city. Also opening for Gilbert is Zach Miller, a former Chicago Bear who now is a musician. Headliners for the “Rock the Lake” show on June 19 will be announced March 24, McHenry Mayor Wayne Jett, who serves as the director of the RISE Up Foundation, has said previously. More than 1,500 tickets for the musical festival were sold within the first 10 minutes they were available on Wednesday.