Get a Celebrity on the Phone

Rachel Bilson (By Mark Mainz -- Getty Images)

Call your mom back later -- Rachel Bilson from "The O.C." is on the other line.

Or maybe it's Brooke Shields, Melissa Etheridge or Kristin Cavalleri from MTV's "Laguna Beach" -- they're just some of the bold-faced names auctioning off 10 minutes of talk time on eBay. The bidding for the event, organized by Skype ( http://www.ebay.com/skypeaceleb ), begins Tuesday and benefits the Art of Elysium, an organization that connects artists with needy children.

A warning to Us Weekly addicts: Though there are no set subjects, it's unlikely you'll get the scoop on anything too juicy. Each celeb can deem certain topics off-limits, in addition to having someone listen in to monitor the conversation's content. (That old question "What are you wearing?" means something totally different if you're not on the red carpet.) Caitlin Carroll