YBF folks have been spotted out and about in Hollywood this weekend: Lauren London, the newest addition to the "90210" cast, was spotted shopping on Robertson Blvd. Loving her casual and cute look. Elsewhere in L.A., T.I. hit up Mr.

' Barack Obama was spotted taking his youngest daughter Sasha trick-or-treating in Chicago yesterday. I guess she's a cute mummy.  Or an extra from the "Thriller" video.  Anyways, I hear Sen. Obama wasn't ecstatic about the paps following them around on his daddy-daughter time, but he handled them with niceness anyway--as usual. All the rest of the YBF folks hit the Pur Halloween party at STK in Hollywood last night.  Christina Milian arrived as a Ladybug: And I kinda love it. By the way, Chris posted this vid on her Myspace Records page asking her viewers to choose her costume and she modeled them for everyone: Happy Halloween w/Christina Milian! What do i wear?!?!?

And clearly the Ladybug beat Rainbow Brite.
Kim K. and Reggie Bush went as flapper girl and Rat Pack member: Looking pretty sexy there Reggie.  I see that "injury" of yours hasn't held you back from the party life though.  *side eye* More pics including John Legend and Toccara when you read the rest...

I'm real tempted to hate Beyonce for working it out like this.  The Knowles sisters got Bootylicious in Tokyo yesterday: Beyonce and Solange hit the the trendy Eight Million fashion shop in the Ginza district.  They were there to promote Samantha Thavasa handbags and their albums: I never thought I'd see the day when Beyonce gave into the over saturated trend of the Herve Leger bandage dress.  But if you're going to rock something played out, at least look ridiculously fab and better than damn near everybody else who rocked it.  Checkmate. Pics of Halle Berry's new 'do when you read the rest...

This probably isn't the sight you wanted to see this damn early in the morning, but it is Halloween: Michael Jackson took his kiddies out trick or treating--last night.