Most of Taylor Swift's fans are probably too young to have been around when Carly Simon was blazing up the charts. But for a music aficionado like Taylor, doing a duet of You're So Vain with the legendary singer must have been like a dream of clouds in her coffee. Carly walked onstage like she was walking onto a yacht. But it was Taylor that reeled! Even knowing the surprise was coming, she was still visibly nervous to perform with her hero Parents-to-be Fergie and Josh Duhamel celebrated the upcoming birth of their baby boy over the weekend with a star-studded shower. The guest list read like a Hollywood event with Kelly Osbourne, Julianne Hough, RuPaul, Lance Bass, Adam Lambert, Molly Sims, and Gabriel Aubry in attendance. Kristin Cavallari is used to keeping reality storylines on the down-low, but when it came to her own real-life wedding story she shocked even herself that she was able to pull off getting hitched without a hitch. "I'm kinda surprised we did," the blonde beauty says, We only invited our closest friends and family and we just told everybody not to tell anyone.?