Every year from late April through May, several rock festivals are held across the United States, and are collectively known as the 'World's Loudest Month.' The 2015 dates for the eight festivals have been announced, with lineups to be unveiled at a later date. Watch a trailer above.

In addition to stalwarts like Rock on the Range, Carolina Rebellion and Rocklahoma, there will be a new festival in 2015. Northern Invasion will be held May 9 in Somerset, Wis., just outside Minnesota's Minneapolis/St. Paul area.

“With each passing year we continue to work hard to bring something special to the rock fans around the country and to make it easy and convenient for them to attend our events,” says Joe Litvag, co-executive producer of the series for AEG Live.  “That was the reason behind starting Northern Invasion in the upper Midwest."

He continues, "There is such a tremendous community of rock fans in places like Minnesota, Wisconsin, Iowa, North and South Dakota, and nothing was all that convenient for them.  So, we thought, ‘Why not bring them a rock festival that they can call their own?’”

Here are the details of the rest of the 2015 'World's Loudest Month' festivals: The series kicks off with Monster Energy Welcome to Rockville in Jacksonville, Fla. on April 25 and 26. Monster Energy Fort Rock will be April 25 in Fort Myers, Fla. The lineups for those two festivals will be announced Dec. 8 and tickets go on sale Dec. 12.

Carolina Rebellion is slated for May 2 and 3 in Concord, N.C. at Charlotte Motor Speedway.  Last year's attendance was more than 60,000 people. The lineup for 2015 will be revealed early next year.

The largest 'World's Loudest Month' festival is Rock on the Range, which will take place May 15-17 in Columbus, Ohio at Columbus Crew Stadium. 120,000 fans attended last year. In 2015, AXS TV will be there to film the weekend as part of their live festival coverage. The lineup will be announced in early December.

Following last year's record crowd, the 2015 edition of Rocklahoma will be May 22-24 in Pryor, Okla. They are set to announce the lineup in January. Deep in heart of Texas will be the third annual River City Rockfest in San Antonio on May 24. The 'World's Loudest Month' festivals wrap up with Rockfest, which will take place for the 23rd year in downtown Kansas City on May 30.

List of 2015 World’s Loudest Month festival dates:

Monster Energy Fort Rock: April 25 in Fort Myers, FL
Monster Energy Welcome To Rockville: April 25 & 26 in Jacksonville, FL
Monster Energy Carolina Rebellion: May 2 & 3 in Concord, NC
Northern Invasion: May 9 in Somerset, WI
Rock On The Range: May 15, 16 & 17 in Columbus, OH
Rocklahoma: May 22, 23 & 24 in Pryor, OK
River City Rockfest: May 24 in San Antonio, TX
RockFest: May 30 in Kansas City, MO

You can download a 'World's Loudest Month' mobile app via iTunes and Android. Loudwire will keep you updated as the various festivals announce their lineups.

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