We're just a few hours from learning the lineup for Rockfest, North America's largest single-day music festival. Rockfest is held annually at Liberty Memorial Park in Kansas City. This year, the event is scheduled for May 15.

More than 50,000 people attended Rockfest 2009. Godsmack, Staind, Seether, Stone Temple Pilots and Korn have all headlined Rockfest.

Rockfest is produced by AEG Live and hosted by KQRC-FM. The official lineup announcement comes Monday morning during the 'Johnny Dare Morning Show' on KQRC.