(Our round-up of celeb gossip so you can keep up with your girlfriend.)

Britney Spears' sex tape is on the market. (Defamer)

Justin Timberlake reportedly bought an engagement ring for Jessica Biel. (I'm Not Obsessed)

Paris Hilton portraits now made entirely out of porn magazines. NSFW (Derober)

Janet Jackson was hospitalized after a concert. (People)

Travis Barker was released from the hospital. (Ninja Dude)

Sean Penn texted Madonna after kissing his "Milk" costar James Franco. (Popeater)

Jennifer Aniston was spotted in a bikini in Cabo. NSFW (The Superficial)

Sarah Palin's beauty pageant video has surfaced. (The Blemish)

Audrina Patridge is back in a bikini. NSFW (Celeb Parasite)

Kenneth Branagh could be directing the "Thor" movie. (Cinematical)