Hailey Baldwin went shopping in Beverly Hills on Tuesday, and the 19-year-old model went for a biker babe/rocker chic look in skinny leather pants and a Metallica tee. We're not digging the white sneaks, but she's hot enough to pull it off, so it's OK...

On Sunday Hailey celebrated her birthday, and she posted an Instagram pic of some baked goods from bestie Kendall Jenner. But these weren't just sweet ... turns out, they had a rather sassy message on them! "Birthday cupcakes from @kendalljenner. What else are friends for?" Baldwin captioned the photo of a set of four cupcakes that said "F*ck him." She later deleted the snapshot.

"She was very upset about something that happen this past week," a source tells E! News. Hmm, maybe something like Justin Bieber getting back together with Selena Gomez?