Justin Bieber went to lunch at Il Pastaio on Sunday, and rather than quietly slipping back into his car, he was mobbed by a throng of very aggressive fan girls. The 21-year-old superstar was sweet enough to pose for some photos, and he flashed us his super sexy smile on the way out of the upscale eatery. That purple hair though? We love him, but this might be his worst 'do yet. We're actually kinda glad he covered up with a cap...

In other news, Stephen Baldwin ran into paps over the weekend, and when asked what's going on between his model daughter Hailey and the Biebs, the actor denied that they were romantically involved. Baldwin told TMZ that the pair are "just friends," adding that there's "no label." Even after that kissing pic though? We're not buying it.

Can't get enough of Biebs and his purple locks? Lucky for all of us Beliebers out there, the pop star posted this pic on Saturday, where we can see the hair on his head -- and the beginnings of his happy trail: