Bret Michaels performed a free concert with a salute to the troops on the AAA Stage at Victory Plaza Sunday before the “AAA 400 Drive for Autism” Monster Energy NASCAR Cup Series race at Dover International Speedway.

During the show, he welcomed veterans onstage so their service could be honored. He remained in the concert area for almost two hours after the show to sign autographs and take pictures with fans.

Michaels, a Type-1 diabetic since age 6, won his season on NBC’s “Celebrity Apprentice,” raising funds for the American Diabetes Association. In all, Michaels’ charitable efforts have helped raise more than $3 million for diabetes research. Michaels has also assisted in raising funds for wounded U.S. veterans, childhood cancer research, St. Jude Children’s Hospital and PetSmart Charities.

The singer/songwriter and former front man of the rock group Poison has sold more than 40 million records worldwide.

He recently embarked on his 2018 Party Starts Now tour and brought the party to fans before the big race, playing Poison favorites as well as his solo hits.

As a solo artist, Michaels’ album “Custom Built” reached No. 1 on Billboard’s Hard Rock and Independent Albums charts, and “Jammin’ With Friends” included contributors Jimmy Buffett, Loretta Lynn and Aerosmith’s Joe Perry. Michaels’ theme song to the VH1 hit show “Rock of Love with Bret Michaels” won a Broadcast Music, Inc. award for the most-played television theme song.

Poison’s hit album “Open Up and Say … Ahh!,” celebrating its 30th anniversary this year, included the smash Billboard No. 1 hit “Every Rose Has Its Thorn,” which is one of the most well-known rock songs of all time.