"The Big Bang Theory" star Kaley Cuoco is engaged to tennis player Ryan Sweeting after just three months of dating. The couple hooked up in July, after Kaley's brief romance with "Man of Steel" star Henry Cavill. "It's only been three months but she knows Ryan is the one," a rep for her show confirmed to Us Weekly. The two lovebirds hit the red carpet together at the Primetime Emmy Awards last weekend. (story)

Melissa Joan Hart has a new memoir coming out and the former teen actress has shared some of the dirt from in the book, titled "Melissa Explains It All". The "Sabrina the Teenage Witch" star shares that she's dabbled with numerous mind-altering drugs and reveals the guys (and girls) she's hooked up with. (story)

In a new interview with Canada's Fashion magazine, Miley Cyrus reveals that she wrote a song on Valentine's Day about how she wanted to break things off with fiance Liam Hemsworth. The song "Drive", off her forthcoming album "Bangerz", is about being stuck in a troubled relationship. (story)

Tina Fey suffered a brief wardrobe malfunction during the Emmy Awards on Sunday night, and now she's poking fun at the incident in a new promo for this week's episode of "Saturday Night Live", which she'll be hosting. During the promo she suffers a bigger nip-slip, but thankfully it's censored. (story)

Lindsay Lohan's half-sister Ashley Horn wants to look like her celebrity sibling so badly that she underwent $25,000 of cosmetic surgery at age 18 just to accomplish that. The identity of Ashley's father, Michael Lohan, was only confirmed in 2008. She was conceived when Michael and Lindsay's mom Dina had briefly separated. Now we know which parent the crazy gene in the family came from. (story)

Joseph Gordon-Levitt talks about his new film, "Don Jon". The actor says his take on the traditional story of womanizer Don Juan, but instead of a tragic ending, he's balanced the "darkness and light" because he's and optimist. Gordon-Levitt wrote, directed, produced and stars in the film. Check out this really interesting interview with the star about his new film. (story)

Kanye West is very upset with Jimmy Kimmel because the late-night TV host spoofed is recent interview with BBC Radio 1 by having two children play the parts of Kanye and interviewer Zane Lowe. Kimmel had the two kids recreate part of the interview and use the actual dialogue from the actual thing, which the rapper isn't too happy about. He went on a twitter tirade against Kimmel afterward, which the talk show host also ridiculed. (story)