5. It hasn't taken long for Pink to get over her marriage to Carey Hart, which ended in February. She and Jeremy Piven were seen getting all hot and sweaty on the dance floor at Green Door in LA this week. A witness says they were all over each other, but Pink's rep says while both Pink and Jeremy were there, they were not with each other on the dance floor or otherwise. Jeremy's rep says the same thing, but added per Jeremy, "She is a friend. A good woman."

4. Britney Spears has been busting her butt in the gym, literally. Her trainer says she's dropped 15 pounds in four weeks because she does everything he tells her to do and then works out on her own. Britney has been a regular fixture at Bally's in Hollywood. Her trainer Marc Corliss says, "She's hell-bent on getting a rocking midsection again...doing about 500 or so abdominal exercises every day." Britney also does an hour of interval training -- like sprinting mixed with weight training -- four days a week.

3. Ashlee Simpson and Pete Wentz reportedly are getting married next Friday somewhere in California. A source says they're trying to keep details super secret, and guests won't be told where to go until the day of the wedding. But reportedly, it will be within an hour's drive of LA. Jessica Simpson told "People" magazine she is the maid of honor.

2. Just last month she said having a baby would make her feel violated, but now that she's met and married her soul mate Nick Cannon in less than six weeks, Mariah Carey is ready to become a baby-making machine. She told one reporter, "It's part of the whole purpose of getting married." Plus, that biological clock must be booming in her ears. Mariah's 39. Her new hubby is 27.

1. They can't deny it anymore! There are pictures and video footage of Rihanna and Chris Brown getting all kissy-faced and cuddly at the KFC in Miami. After realizing they had been spotted by paparazzi, they apparently decided they couldn't keep it a secret any longer, so Rihanna threw her arms around Chris' neck and planted a big old kiss on his lips.