A tipster emailed a photo of Katy Perry and Russell Brand "bike riding and asking for directions to the Standard Hotel" yesterday afternoon. Have you spotted someone noteworthy? Email a photo to stalker@gawker.com or post it yourself to #stalker.

Lindsay Lohan: Free again. How much does it cost to have the Situation hang out with you? Oksana and Mel exchange dueling extortion claims. But, seriously, guys. Lindsay Lohan's out of jail! Saturday Gossip Roundup can't believe it either.

Katy Perry was supposed to guest star on Sesame Street, but her boobs were too exposed. TMZ reports that 'Sesame Street' has decided not to run a clip featuring her and Elmo performing 'Hot N' Cold' in a low-cut top.

Guess what! SNL returns this week, with Amy Poehler as host and Katy Perry as the musical guest. Guess what else! Poehler and Andy Samberg starred in four just-released promos for the episode. They're funny! Watch all of them inside.

Tonight's Factor brought us a one-two punch of horny goodness, courtesy Bill O'Reilly, who played clips of Bristol Palin's DWTS routine (watch here) and Katy Perry's boob-filled Sesame Street spot (here) for no apparent reason—besides horniness. Video inside.

Today at Gawker.TV, Will Arnett and Jimmy Fallon play golf inside the NBC studios, VH1's I Love Money has returned post-murder/suicide, The Soup upgrades to HD, Kathie Lee and Hoda reveal too much, and Katy Perry's boobs guest star on Sesame Street.

Sesame Street is supposed to be for toddlers, right? If so, then why did Katy Perry recently guest star as a playmate/love interest of Elmo? Also, why didn't Perry cover up a bit more? The puzzling—and melodic—video, inside.

Katy Perry played out every teenager's fantasy by performing at her old high school. The California Girl singled out the boy who never dated her, but back then she was probably too awkward to ask in the first place.

Failed Christian rock singer and current national embarrassment Katy Perry was performing at her old Santa Barbara high school on Tuesday when she spotted a former crush in the audience. She decided then to dedicate her worst song to him.

[The vastly talented artist Katy Perry in London. Image: Bauer-Griffin]

Not only has Katy Perry created a catchy album rife with solid writing and modern, synthy, adept pop music, but she's also crafted an album about her love of the modern, All-American, full-blooded male.

[Katy Perry on the Today Show. Image: Splash]

[Katy Perry and Russell Brand after a night out in New York City. Image via INF.]

Neil Patrick Harris is having twins. Lindsay Lohan is mentoring young girls. Katy Perry crashes a prom. Maybe we're going to see angry Mel Gibson text messages. Famous matchmaker's engagement goes sour. Sunday's Gossip Round Up, coming up!

Do you like Katy Perry? Do you also like Genesis, the '80s band fronted by one Phil Collins? Well, then you'll like this: an unlikely—yet completely awesome—mashup of Perry's "California Gurls" with Genesis' "Invisible Touch." Yeah, you're welcome.

Lady Gaga crowd surfs in pasties and fishnet, and gets licked. Dina Lohan plans a family garage sale. Katy Perry's new song is about how bad her ex-boyfriend was in bed. Monday gossip is orally fixated.

Mary-Kate Olsen describes her childhood act as "little monkey performers." The Beach Boys threaten to sue Katy Perry. Lily Allen is pregnant. Enrique Iglesias waterskis naked. Maddox and Pax call their nanny "mom." Thursday gossip's problems go back to childhood.

Katy Perry pontificates on Google Alert addictions. Laurence Fishburne isn't speaking to his porn star daughter. George Clooney's girlfriend knows you're jealous of her, and she will rub her happiness in your face. Wednesday gossip indulges bad habits.

Thanks to Jersey Shore, it's all about the guidos these days, and there are definitely a few yuks at their expense in "Staten Island Girls," a parody of Katy Perry's "California Gurls." The jokes are easy, but they're classic.

Lindsay's family gets special permission to visit on a week day. A photograph of Mel Gibson's possibly abused baby surfaces. Britney Spears is possibly on Team Mel. Katy Perry floats in a cloud of cotton candy. Thursday gossip is tentative.