Sammy Hagar‘s Rock & Roll Road Trip returns with new episodes next month, and the veteran rocker will have a mixed bag of special guests for the television show’s upcoming fourth season.Earlier this week, AXS TV, the channel on which Hagar’s show airs, shared a photo to its social media outlets featuring the former Van Halen singer standing between celebrity chef Guy Fieri and Tool singer Maynard James Keenan. The photo didn’t come with any specific accompanying copy aside from stating the names of the two guests. Keenen’s appearance on the show is interesting timing, as the popular metal band just recently announced a batch of spring tour dates in support of a possible new album, which could arrive in the coming weeks.Related: Tool’s First New Album Since 2006 Is Recorded And Being Mixed, Says Maynard James KeenanFieri and Keenan aren’t the only notable names set to appear on Hagar’s show this season. Willie Nelson will be the special guest when the show returns on May 5th, followed by episodes featuring Cheech & Chong, Rick Springfield, Charlie Daniels, The Doors’ Robby Krieger, Joe Bonamassa, Jason Bonham, and Mötley Crüe’s Vince Neil, just to name a few. The episode featuring Fieri and Keenan is scheduled to air on July 7th. Fans can check out the video below to watch the official trailer for Rock & Roll Road Trip‘s upcoming season.Rock & Roll Road Trip – Season 4 Trailer[Video: Sammy Hagar]Hagar’s latest band, Sammy Hagar & The Circle, will release their debut album, Space Between, on May 10th via BMG. The band also includes Hagar’s former Van Halen bandmate Michael Anthony on bass, drummer Jason Bonham, and Vic Johnson on guitar.