AnnaLynne McCord, Sophia Bush, Solange Knowles, Joel Madden, Brody Jenner, Cody Linley and Bow Wow appear in Op’s “Summer of Music” print, outdoor and online marketing campaign. The Op campaign will debut this month in fashion, entertainment and lifestyle magazines and online at www.op.com. The Op collection is available exclusively at Wal-Mart and www.walmart.com/op.