Pasadena is used to its parades, but on Saturday its denizens will be traipsing around Old Town to get an earful of music rather than an eyeful of rose pedals. What's impressive about the annual Make Music Pasadena is how many constituencies the festival is serving over one day. With more than 50 performances scattered around 17 venues, the free, all-ages shows feature artists with impressive resumés (veteran rocker JD Souther, jazz legend Barbara Morrison and Latin Grammy-nominated chanteuse Natalia Lafourcade); something for young pop masses (Matt & Kim, the Antlers); and a smattering of SoCal's most promising up-and-comers (Warpaint, Voxhaul Broadcast, Moses Campbell and the Growlers). The Hipster Nation might not get to the gentrified outback very much, but Pasadena might be worth the trip on Saturday. You can hold your breath when you walk past the Gap store.

Elsewhere: Opening Night at the Hollywood Bowl tonight features Donna Summer, Jean-Yves Thibaudet and Richard Carpenter, with the latter giving a rare performance and conducting the Hollywood Bowl Orchestra in a medley of Carpenters' hits. … There's a slice of real L.A. at the Echoplex tonight, where hip-hop pioneers Freestyle Fellowship (Aceyalone, Myka 9, P.E.A.C.E., Self Jupiter and producer J Sumbi) headline a bill that includes Busdriver and Nocando. … And from the Dept. of Rock: Athens three-piece the Whigs join L.A.'s favorite flannel-shirted rockers Everest for a show tonight at the Troubadour. … On Saturday, two local pop acts celebrate album releases — Rooney with a headlining show at the Music Box and the Like with a big at the Troubadour. … Outlaw country legend Billy Joe Shaver holds forth Saturday at downtown's cozy Redwood Bar. … There's a Tribute to the Beach Boys, benefiting Sweet Relief, on Saturday at Historical Monument 157, and Victoria Williams and the Chapin Sisters are among the performers. … And Jamie Lidell brings his blue-eyed soul to the El Rey Theatre on Saturday night. … Sunday is highlighted by two big outdoor shows — a Hollywood Bowl show featuring Yeasayer and Baaba Maal, among others, and a big 1-2-3 punch at the Greek Theatre, with Erykah Badu, Lupe Fiasco and red-hot Janelle Monae. … And, in cozier environs Sunday night, it's Sea of Bees at the Hotel Cafe.

Also tonight: Pantha Du Prince and Delphic at the Echo; Gemma Ray at the Redwood; Citay and Slang Chickens at Spaceland; Totally Serious and Snuffaluffagus at the Smell; the Cool Kids at the Glass House in Pomona; Active Child and Rocco Deluca at the Bootleg Theater; Stevie B at the Freestyle Explosion at the Gibson Amphitheatre; Russell Taylor at the Roxy;

Jim Lauderdale at McCabe's; Tenlons Fort at Echo Curio; Nice Guy Eddie at the Viper Room; City Museum's breakup show at the Mint; and a couple of free 7 p.m. in-stores, Division Day at Origami Vinyl and City of Progress at Vacation Vinyl.

Also Saturday: Imogen Heap at the Greek Theatre; Jin Akanishi at Club Nokia; Names of Stars at the Mint; the Blasters at the Echo; Brazzaville at Spaceland; the Idyllists at the Viper Room; the 21st Annual Mariachi USA Festival at the Bowl; Elevaters and Lelia Broussard at the Hotel Cafe; Religious Girls at the Smell; and two 7 p.m. in-stores, Meho Plaza at Vacation Vinyl and Ovideo at Origami Vinyl.

Also Sunday: Bert Jansch at Largo; So Many Wizards and Moses Campbell at McCabe's; the Warlocks at the Echo; Ross Sea Party at Spaceland; Jin Akanishi at Club Nokia; Hot Victory at the Smell; Chrome Wings at Echo Curio; and a 2 p.m. matinee geared to children at the Hotel Cafe featuring Priscilla Ahn and Tom Freund.

Saturday and Sunday: The PacSun Beach Ballyhoo at Santa Monica Beach features Circa Survive, Minus the Bear and Ra Ra Riot on Saturday, and B.o.B., Matt & Kim and Neon Trees on Sunday.

LA Weekly