Erykah Badu will perform as part of Summer Spirit Festival in August. (Andrea De Silva/Reuters) All the summer festivals trot out pretty good lineups, but most opt for rock and won’t have the number of top-notch R&B performers set to play Merriweather Post Pavilion on Aug. 4. Scheduled to perform at the Summer Spirit Festival are: Erykah Badu, Common, Chuck Brown, Sharon Jones and the Dap-Kings, Estelle and Eric Roberson. Tickets go on sale Friday at 10 a.m. through Ticketfly and cost $44-$125.

Tickets are on sale now through Tickets.com for “Song 1: A Happening,” featuring No Age and High Places May 11 at the Hirshhorn Museum and Sculpture Garden ($25).

Tickets go on sale Thursday at 10 a.m. through Ticketfly for the following shows at the 9:30 Club:
• Dengue Fever and Omar Souleyman June 6 ($20).
• The Head and the Heart June 28 ($25).
• Bombay Bicycle Club Aug. 1 ($20).

Tickets go on sale Friday at 10 a.m. through Live Nation for:
• Fiona Apple June 26 at the Warner Theatre ($55-$75).
• Afrojack June 1 at the Fillmore Silver Spring ($39.50).
• Jay Park May 19 at the Fillmore Silver Spring ($42).
• Kelly Clarkson and the Fray Aug. 23 at Jiffy Lube Live ($26-$71).

Tickets go on sale Friday at 10 a.m. through Ticketfly for the following shows at Merriweather Post Pavilion:
• Lucinda Williams, Drive-By Truckers and Justin Jones May 19 ($35-$45).
• O.A.R. and Rebelution Aug. 10 ($35-$45).

Tickets go on sale Friday at 10 a.m. through Ticketmaster for Dierks Bentley June 28 at Baltimore’s Pier Six Concert Pavilion
($25-$42).

Tickets go on sale Friday at noon through Ticketmaster for the following shows at the Birchmere:
• Leela James July 16 ($25).
• Shawn Colvin July 19-20 ($49.50).
• Glen Campbell July 22-23 ($75).
• James McMurtry Aug. 4 ($29.50).
• Goapele Aug. 17 ($29.50).
• Herman’s Hermits Oct. 19 ($45).
• “Raven’s Night” Oct. 20 ($25).
• Ramsey Lewis Oct. 21 ($65).
• Tom Paxton Oct. 27 ($35).
• Banjo Summit, featuring Bela Fleck, Tony Trischka, Bill Keith, Noam Pikelny, Richie Stearns, Eric Weissberg, Pete Wernick, Russ Barenberg, Jesse Cobb, Alex Hargreaves and Corey DiMario Oct. 30 ($49.50).

Tickets go on sale Friday at noon through Ticketmaster for the following shows at the Howard Theatre:
• Dick Gregory May 11 ($26 in advance, $30 at the door).
• Leann Rimes May 15 ($65 in advance, $70 at the door).
• Lindsey Buckingham June 12 ($57 in advance, $60 at the door).
• The Zombies Aug. 9 ($39.50 in advance, $45 at the door).

Tickets go on sale Saturday at 10 a.m. through Ticketmaster for WWE Smackdown June 19 at Baltimore’s 1st Mariner Arena ($20-$95).

Tickets go on sale Monday at 10 a.m. through Ticketmaster for Van Halen July 15 at Baltimore’s 1st Mariner Arena ($47.50-$127.50).