It's Friday, so that means another edition of celebrity gossip and things you need to know with Knightlines... 

1. In a new photo shoot, MILEY CYRUS shows her boobs, nearly exposes her crotch and uses an Arizona Grapeade can as a, well... you know. The usual.

2. It's on between MILEY CYRUS and SINEAD O'CONNOR. Big time. Sinead started it with an open letter to Miley, telling her that she's allowing herself to be prostituted by the music industry. Miley responded by calling Sinead crazy. Sinead called Miley out in a SECOND letter, and Miley Tweeted, quote, "If you'd like to meet up and talk lemme know in your next letter."

3. The "Star" tabloid reported that NICKI MINAJ hooked up with ZAC EFRON over the summer. Apparently it's not true, because she Tweeted, quote, "Who exactly is Zac Efron tho? I'm sorry, I'm so confused." One of Nicki's followers helped her out by sending her a shirtless photo of Zac . . . to which Nicki replied, quote, "Oooohhhh ok… Well I guess that rumor isn't so bad after all."

4. STACY KEIBLER was living the high life when she dated GEORGE CLOONEY. But now that he's out of the picture, she might have to return to PRO WRESTLING to support that kind of life. A source says, quote, "Stacy estimates she NEEDS over $50,000 a month to support her current lifestyle. She admits a return to wrestling isn't quite what she had in mind, but the offers are getting too good to refuse."

5. The Sandra Bullock astronaut movie "Gravity" hits theaters this weekend. It's up against Justin Timberlake's "Runner Runner", which features Ben Affleck as a gambling tycoon in trouble with the FBI. Some of the other movies getting a limited run include a movie about the JFK assassination and the horror comedy "Bad Milo".

6. has put together a list of the 25 Movies from the '80s That Every Kid Should See. It includes "E.T.", "The Goonies", "The Princess Bride", "Gremlins" and "The Breakfast Club".