In case you missed it, we now know that Chris Brown was for sure at Rihanna's pre-birthday party the other night — because he asked workers and some guests to sign confidentiality agreements. [TMZ]
What's more: Chris Brown is singing and rapping a new Rihanna track, "Birthday Cake." No matter how good this song is, it's…

• Wow: Dita Von Teese will guest star on CSI.

• Matthew McConaughey and his wife, Camilla Alves, welcomed their second child yesterday, a daughter named Vida Alves McConaughey. McConaughey explains his daughter's name as such: "'Vida' is Portuguese for 'life' and that's what God gave us this morning." [People]

• Brad Pitt's mom was supposed to move into the Long Island estate where the posse is staying while Angelina Jolie films Salt, but Angelina has reportedly nixed the idea.

• John Mayer did not, repeat did not buy an engagement ring for Jennifer Aniston. [Us Magazine]

[Los Angeles, February 18. Image via INF]

• Michael Phelps will host the season premiere of Saturday Night Live. Um, swimming skits? Will you watch if he's not bare-chested? Just asking. [Yahoo News]
• Lindsay Lohan responds to the stuff her dad's been saying: "He's out of control. I want him to stop hurting and talking to the media about the people I love." [Perez…

[Beverly Hills, June 25. Image via Flynet]