Secret Lovers?

Do Katy Perry and Rob Pattinson have something going on? It sure seemed that way on Wednesday night when the duo hit up a pal’s birthday bash at a karaoke bar in LA – and even left the party together! Twilight hottie Rob and “I Kissed a Girl” singer Katy, who has been dating British actor Russell Brand, arrived at Dimples Bar for Shannon Woodward’s celebration and spent most of the night by each other’s side. “They were having a blast together,” a source says. “They were chatting and definitely flirting with each other.” And when it was time to leave, Rob got into Katy’s black Audi and sped away with her. But Edward and Bella fans, don’t freak out ­ Rob was seen having a romantic dinner with his Twilight costar girlfriend Kristen Stewart earlier that night at Gjelina restaurant in Venice Beach. And Katy was seen on Thursday in LA kissing her beau Russell goodbye. Whew!

Good Riddance

The public catfights and TMI sessions are over! Jon Gosselin and ex Kate are officially dunzo. The reality show stars with eight kids are now completely single – and Kate is thrilled with her settlement. Sources say that Jon & Kate Plus 8 matriarch walked away with “most of the family’s cash and the house.” Meanwhile, Jon is struggling to make ends meet after quitting the show that made his rich and famous and being dumped by his girlfriend Hailey Glassman. “He’s a mess,” says a source.

Out & About

Jamie Lynn Sigler and Lance Bass, shopping at Armani exchange in NYC.

Kim Kardashian, grabbing some Under Armour underwear for boyfriend Reggie Bush at the brand’s pop-up store in NYC.

Rihanna, partying with pals at Whisky Mist in London.

Blake Lively, showing off lots of leg at the Sherlock Holmes premiere in NYC.

Alicia Keys, buying some new shoes at the Christian Louboutin store in NYC’s West Village.

Kate Beckinsale, out smoking a cigarette while walking in LA with ex Michael Sheen.