Pop-punk band Fall Out Boy will have an unusual guest joining the billing for its upcoming spring outing. Rap mogul 50 Cent will take the stage on five dates of the Believers Never Die Part Deux tour.

The rapper-producer has been added to the supporting roster on April 14 at Fillmore Auditorium in Denver, CO; April 17 at Nokia Theatre in Grand Prarie, TX; April 18 at The Showgrounds at Sam Houston Race Park in Houston, TX; April 24 at Bojangles Coliseum in Charlotte, NC; and April 25 at Merriweather Post Pavilion in Columbia, MD.

For the rest of the tour, supporting duties will rotate nightly among alt-rock band Cobra Starship, pop rockers Metro Station and pop-punk crew All Time Low. Special guest Hey Monday will also be along for the ride as the tour’s opening band.

“This will be a major moment in music history,” 50 Cent said in an interview with MTV News. “Joining forces with Fall Out Boy, one of the most dynamic rock bands in the industry, will be an exciting and historic event for rock and hip-hop.”

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FOB bassist Pete Wentz told MTV, “We’ve wanted to do something with [50 Cent] for awhile, and having him out on the tour is gonna take the show to a whole new level. It’s exciting to bring two different genres together and give the fans a new experience.”

Despite the band’s admiration for Fiddy, fans questioned the announcement in comments on the official Fall Out Boy Web site. One fan, identified as meghanissuper, asked, “Was it really necessary to add him in? Can’t he have his own tour?” Others expressed dismay that 50 Cent would be appearing on dates in their city.

For some fans, though, the unorthodox addition wasn’t all bad news. A fan identified as PoeticRasling observed, “Definitely the most random, awesome thing ever. Not sure why the fans are so huffy… I’m not a fan of 50 Cent or anything, but I definitely wouldn’t mind seeing him live.”

The Believers tour launches April 3 at Mesa Amphitheatre in Mesa, AZ, and is booked through May 17 at Roy Wilkins Auditorium in Minneapolis, MN. The coast-to-coast jaunt will visit 32 markets across the U.S. and Canada.