Tickets on-sale alert: Ke$ha, Dinosaur Jr., Kid Rock, A Perfect Circle, Mike Epps and more

On sale Friday, April 8

The Cars | May 26 at the House of Blues, Boston | $51.25-$76.25 | On sale at 10 am at livenation.com

JAM'N 94.5s Summer Jam 2011 | June 4 at the Comcast Center, Mansfield | $25-$118 | On sale at 10 am at livenation.com

 A Perfect Circle | July 12 at the Bank of America Pavilion, Boston | $28 | On sale at 10 am at livenation.com

Frankie Valli & the Four Seasons | May 7 at the House of Wilbur Theatre, Boston | $97-$120 | On sale at noon at ticketmaster.com

 "The Us Air Guitar Championships: Boston Regional" | June 17 at Brighton Music Hall, Allston | $14 | On sale at noon at ticketmaster.com

Dinosar Jr. Performing ‘Bug' In Its Entirety | June 22 at the Paradise Rock Club, Boston | $33 | On sale at noon at ticketmaster.com

Mike Epps | June 24 at the Wilbur Theatre, Boston | $50 | On sale at noon at ticketmaster.com

On sale Saturday, April 9

The B-52's and the Go-Gos | June 9 at the Bank of America Pavilion, Boston | $30-$50 | On sale at 10 am at livenation.com

Kid Rock, Sheryl Crow, and Leroy Powell & The Messengers | July 9 at the Comcast Center, Mansfield | $25-$85 | On sale at 10 am at livenation.com

Ke$ha: Get $leazy Tour | August 16 at the Bank of America Pavilion, Boston | $40-$60 | On sale at 10 am at  livenation.com