Four big reasons to attend Philadelphia radio station WMMR 93.3's annual WMMR-B-Q this year: ¿A recent Rock and Roll Hall of Fame inductee, Slash of Guns 'N Roses, plays with singer Myles Kennedy. Kennedy replaced Axl Rose at the band's hall induction performance last month. ¿One of the hottest rising metal acts ¿ inspired parody band Steel Panther. ¿Hot hard-rockers Adelitas Way, whose singer and songwriter is Bucks County native Rick DeJesus. ¿Pennsylvania natives and Lehigh Valley favorites Halestorm. But there's more: Godsmack, Shinedown, Pop Evil, and the Local Shots All-Stars from Jaxon's Building The Band. ¿Noon Sunday May 20, Susquehanna Bank Center, 1 Harbour Blvd., Camden. Tickets $49.50-$75, or $148 for a four-pack of lawn tickets. 856-365-1300; http://www.livenation.com.