Now I have loads of these pencils. About 20. Excessive? Probably. I bought the 15th anniversary set when it came out (last year I think?) which had 15 pencils in. I think both of these were in that set.
Binge is the blue and it's gorgeous. I love a navy blue pencil and this is a lovely one. Obviously the formula is great, it lasts well on my top lash line and it lasts okay on my waterline. I'll be honest, nothing really lasts well on my waterline. I've learned to accept this fact.
It has a nice shimmer in it but it doesn't look totally garishly glittery, just nicely metallic.
Rockstar is the purple. There's a story behind my falling in love with this pencil. Obviously getting a set of 15 pencils, some are going to become favourite faster than others. I overlooked Rockstar, in fact I forgot I even owned a dark purple pencil. Then I was getting a make over at the Bobbi Brown counter and the artist put one of their new long wear pencils on me, in a beautiful purple shade. It looked lovely. For financial reasons (aka being a poor student) I didn't buy it. Instead I came home and looked through my stash and found Rockstar. Cue my falling in love with it! Rockstar looks quite brown here, but it is definitely more purple in real life. And it's not as metallic as Binge.
So yay for saving money and shopping my stash!