Not her best hairstyle, but we still love her!

Samantha Ronson and a mystery blonde lunched at Nobu in Malibu over the weekend, and Lindsay Lohan's former ladylove was surprisingly chatty with photogs on the way in. When asked about her thoughts on Justin Bieber's tattoos, Ronson, who has plenty of her own ink, responded, "Yeah! Why not?! Is he 18?"

No word on how she feels about him copying her signature style...