Gossip Mill: April 26th

Scarlett Johansson, Sean Penn According to Star, Sean Penn and Scarlett Johansson "had a huge fight about her drinking, smoking and... weight gain." The magazine reports Penn's "urging" Johansson to go on a diet, which is a "touchy" subject with her. And even though the actress would like to drop a few pounds, "she doesn't want Sean telling her she should," notes Star.

Mariah Carey, According to HollywoodLife.com, Mariah Carey secretly gave birth already, and is holding off on announcing the arrival of her twin son and daughter. The site writes, Carey has "been pregnant for sooo long... You definitely delivered your twins!" Adds the blog, "She's been hiding out in L.A. with 'dem babies,' while she has all of us fooled." 

Justin Timberlake "A month after his split from Jessica Biel, Justin Timberlake has a new hair-raising dilemma," reports In Touch. According to the magazine, Timberlake is "horrified" that he's losing his hair. The mag notes, "He's keeping his hair super-short so no one notices," and is trying everything, including a "specially formulated shampoo to promote hair growth." 

Reese Witherspoon, Robert Pattinson "Reese hated love scenes with Robert!" declares In Touch, which explains that Reese Witherspoon felt her "Water For Elephants" love scenes with Robert Pattinson were "disgusting" because he had the "most hideous, horrible cold" and was "snorting and snotting through every second of it." 

Jennifer Lopez, HollywoodLife.com reports Jennifer Lopez may be pregnant and is expecting a "new tyke to join the twins." The site says it "caught a glimpse of what looks to be a slight baby bump" at a recent Hollywood wedding, and notes the singer has been "wearing an awful lot of loose-fitting apparel on this season of 'Idol.'" 

Rihanna, Usher OK! reports Rihanna and Usher are "hooking up." According to the magazine, while at the Coachella music festival, the two were "making beautiful music together -- and we're not talking about singing." OK! says at one of the festival's parties, Usher and Rihanna were "flirty" and holding hands. And while Leonardo DiCaprio was, at one point, chatting up Rihanna, "she went home with Usher." 

Jim Carrey Star reports Jim Carrey had a "wild night" that included "booze, pot and four women!" At one point, writes the magazine, Carrey had one of the women "strip so he could paint her body and use it as a giant 'brush.'" Star says Carrey "smeared black paint all over her naked body," and was "pressing her up against the wall... He even got a ladder so she could leave marks higher up." 

Britney Spears, The National Enquirer reports Britney Spears is getting liposuction and a boob job, as part of a $50,000 makeover. The decision for the full-body work, says the magazine, came after the pop star was "devastated" to learn her ex, Kevin Federline, was having another baby with his girlfriend. According to the Enquirer, Spears wants "all the cosmetic work done prior to the start of rehearsals for her Femme Fatale tour." 

Lindsay Lohan, Big Sunglasses "Wasted Again!" reads the cover of Star, which goes on to report that she is "back drinking vodka." According to the magazine, Lohan had a "booze-fueled" stay at the Chateau Marmont last month, and has been "drinking and partying since getting out of rehab." Star reports Lohan's "a wreck."