The Material Girl crosses the half-century mark (officially making her a Material Matron), the Chili Pepper takes the mound at Dodger Stadium and Hayley Williams grins her way through a radio performance. Plus Zac Efron chilling with Dave Navarro (no, we don’t know why), Lily Allen getting punchy with a fellow club-goer and more photos of the week in rock in Random Notes.

• Random Notes: Madonna, Anthony Kiedis, Amy Winehouse and Lily Allen