On May 10th and 11th, UFO tribute band Flight to Mars and Cheap Trick tribute band Dream Police held two benefit shows for the Crohn’s and Colitis Foundation of America. Flight to Mars features Pearl Jam guitarist Mike McCready, who has been an advocate for the disease since going public about his own struggle with Crohn’s in 2002. We caught the second show that helped make this year’s fundraiser — the 16th annual — the most successful yet.

Cheap Trick tribute band Dream Police opened the night's Crohn's and Colitis Foundation of America (CCFA) benefit show.

Brothers Rick (bass/vox) and Chris (drums) Friel breathe fresh life into some classic hits.

Singer Sean Bates takes an isolating moment.

Guitarist Kathy Moore shreds.

Bates and Friel are joined on stage by guest guitarist Gary Westlake (center).

Westlake tunes his guitar while Friel addresses the packed venue.

Moore basks in the ambiance of the classic Showbox at the Market.

Westlake shows that he can rock on the guitar just as much as his signature bass.

Pearl Jam and Flight to Mars guitarist Mike McCready joins Dream Police for an entertaining collaboration.

Bates and Friel wish the audience a fond farewell.

Flight to Mars takes the stage with a performance focused on solid guitar riffs and shreds.

Guitarist Tim DiJulio hypnotizes with his relentless performance.

Mike McCready (guitar) and Gary Westlake (bass) provide a unified backing to singer Paul Passereli's rich vocals.

The CCFA benefit is personal for McCready, a long-time sufferer of Crohn's Disease.

Flight to Mars are consummate performers.

DiJulio delights the crowd with his energetic performance.

Flight to Mars ended the show and benefit to thunderous applause.