Music

Roots Picnic. Philly is lucky to have three of the best crews ever in one place this year: menacing siblings Clipse; ubiquitous hometown heroes the Roots (below); and the three most visible of the Wu-Tang alumni: Method Man, Raekwon, and the wondrous Ghostface Killah. The dexterous, rubbery Vampire Weekend headlines this picnic after scoring a No. 1 album, Contra. The Very Best will come to life. And let's not forget one-line wonders Das Racist, who will no doubt have all of the Festival Pier shouting, "I'm at the Pizza Hut/I'm at the Taco Bell/I'm at the Combination Pizza Hut and Taco Bell." But whatever you do, do not miss the astounding, paint-faced, one-woman show known as tUnE-yArDs (a.k.a. Merrill Garbus), who loops junkshop percussion a la Beck, strums a ukulele, and wails like Nina Simone.

- Dan Weiss

From 2 p.m. Saturday at Festival Pier, Columbus Boulevard and Spring Garden Street. Tickets: $66-$80. Phone: 877-598-8497, www.livenation.com.

Family

Philadelphia International Cycling Championship. More than 200 of the world's top cyclists will race 10 laps on a course stretching from the Parkway to the Manayunk Wall. The day also includes the Liberty Classic - four laps - for women cyclists. East Falls will host a block party from 9 a.m. to 3 p.m. at Midvale Avenue. There will also be several other viewing locations along Kelly Drive, the Parkway and, of course, in Manayunk.

Film

New this week: Get Him to the Greek *** (out of four stars). Think of this Forgetting Sarah Marshall spinoff, reuniting supporting actors Russell Brand and Jonah Hill as a rock star and a fanboy, as a very naughty version of Almost Famous. This time, the fanboy does not write the rock star's legend, but he helps restore him to glory. With P. Diddy, Rose Byrne, and Elisabeth Moss. R (extreme sex, extreme drugs, extreme rock-and-roll, and extreme profanity).

- Carrie Rickey