POTW: Ciara, Katy Perry, Kanye West, Beyonce

Kim Kardashian had an unofficial 30th birthday tag-along party at the TAO 10th anniversary party in NYC on Oct. 16. And who was by her side? Not a new athlete boyfriend -- move over Reggie Bush! -- but bestie Ciara, who helped Kim K. blow out the candles and make a wish.

Ciara helped BFF Kim Kardashian make a birthday wish, Katy Perry and Russell Brand hid from the paps, Kanye West greeted his NYC fans, Jay-Z launched "Decoded" in Miami, M.I.A. was in the Halloween spirit, Lady Gaga sent a thank-you note, Taylor Swift was pretty in pink, Beyonce proved she has no baby bump and Nick Jonas enjoyed a wholesome game of b-ball. It all happened this week and we've got the pics to prove it.

SEE THE PHOTOS OF THE WEEK | POTW MAIN PAGE

News of the Week: Billboard's 5 Most Popular Stories


1. JYJ: Release of the Week

2. 21 Under 21

3. Beyonce Is Pregnant: Report

4. Lil Wayne's 'Human Being' Leaps 16-1 on Billboard 200

5. Justin Bieber's Alleged Assault Victim Files Formal Complaint