Not only did Katy Perry tie Michael Jackson's No. 1's record with her Teenage Dream album -- she also made almost $50 million in the last year with it!

The album has sold 1.7 million copies in the U.S. and about 20 million singles tracks, according to Nielsen SoundScan. That means it brought in $48 million from album sales alone!

Perry is estimated to take home 15 to 20 percent of the album/singles sales. She is also making cash from touring (she's currently on tour for the album.)

The singer, 26, topped U.S. charts with "Last Friday Night," her fifth No. 1 record off the album -- tying MJ's record for Bad. She's the only other artist ever to complete the feat.

Jessica Simpson's BFF, Cacee Cobb, can now join Jess in the engaged girls' club!

Cobb and Faison got engaged this weekend, with the news spreading via Twitter after Faison's Scrubs co-star, Zach Braff, Tweeted them congratulations.

Simpson also Tweeted, saying: "Congratulations, Cacee! I love you and your man!"

The couple have been together since about 2006. Cobb appeared on Simpson's MTV reality show, Newlyweds: Nick and Jessica, as Simpson's personal assistant.

Singer Christina Milian looked gorgeous as she hit the Malibu beach with friends on Saturday!

Milian, 29, was there for a friend's beachside bridal shower. Milian split with husband The Dream in 2010 amid allegations that he had cheated. They have daughter Violet together.

She looks amazing! We love seeing Christina smile with her friends on the sand!

Lindsay Lohan checked in to the Bacara Resort in Santa Barbara last night at 2am in preparation to attend the Kim Kardashian's wedding to Kris Humphries today!

Linds brought along her mom Dina and the two should be getting all dolled up in their room right about now. We're told Kim and Kris' wedding will start late afternoon.

So how and why was Lindsay invited to the event of the year? Well Lindsay was friends with Kim way back when and apparently Kim found a place in her heart (and on her guest list) for an old pal. Awwww ...

Whatever Gwen Stefani paid for that pedicure, it was worth it! Not only does she probably have great looking nails, the pampering really put a spring in her step!

The mother of two took a break from her parenting duties to take care of herself Thursday afternoon, with a quick trip to the nail salon. We're guessing fire engine red for Ms. Rossdale? ...

Disney actress/popstar Demi Lovato was bowled over by her friends' surprise birthday celebration Friday night. The newly-19-year-old had her official birthday party Thursday night at Beacher's Madhouse at the Roosevelt Hotel in Hollywood but last night, her pals came together to organize a night of bowling at Pinz in the Valley.

Demi emerged from the bowling alley at 1:30am, with a pin signed by all her friends. But the party wasn't over yet! Lovato and a mystery man headed to 7-11 to pick up something for the AFTER-party at a friend's house. While Demi stuck with Red Bull to give her enough energy to stay up the rest of the night/morning, her pal picked up some Miller Lite. Two more years and you can join in, Demi!

Queen P, aka Paris Hilton, is back from her whirlwind trip in Europe and the Philippines looking fresh (and hot) as ever!

Seriously -- who wakes up after 18 hours of travel looking as fresh as a daisy? Really? Paris, what's your secret?

Seriously? Is Lindsay Lohan becoming a surfer girl now?

Of course even a beach bunny's got the right to enjoy a smoke after day in the waves ... oh wait, not she doesn't -- smoking on the beach is illegal in LA County!

Lindsay hit the beach again on Friday -- this time joined by mom Dina and sister Ali.