Sunday night’s Sony/BMG Grammy Afterparty marked the coming-out party for music’s newest power couple, Johnicca.

Jessica Simpson remained on tour in Florida last weekend with acoustic style singer John Mayer. Read the rest of this entry »

New York Post sources are snitching that John Mayer and Jessica Simpson may not be the hottest new couple in Hollywood after all.

“John was extremely quiet and didn’t speak a lot, while Jessica “just gave a lot of puppy-dog looks and twirled and twisted her hair,” says a source who spotted the “couple” at Nobu, a South Beach hotspot.

And while touring with her supposed new beau in FL, J.S won’t be frequenting any of the spots that she hit up with first love Nick Lachey. John and Jess stayed at Miami’s Four Seasons Hotel rather than the Shore Club that she always stayed at with N.L.

“Jessica hasn’t been back to the Shore Club since she broke up with Nick,” a source told Page Six. J.S’s PR rep Cindi Berger says, “I will not comment on her private life

Sources have spied Jessica Simpson and John Mayer enjoying their “cladestine” relationship under the blazing sun of Miami.

J&J worked out together on Monday at the resident Sports Club in the hotel where they’re staying. The two are even taking a yoga class and lifting weights, sources said.

Jess and John spent two hours chatting over sushi and bottle water at M.I.A’s Nobu Restaurant at the North Shore’s Club-John took care of the bill while J.S freshened up her lipstick.

John will be sticking around Florida for a few days-he’s performing in Jacksonville on Thursday, Miami on Friday, Orlando on Saturday and wrapping up in Pensacola on the following Monday night

Jessica Simpson, 26 and John Mayer, 28 may just be an item. A source close to Simpson declares she’s “head over heels, [and] telling friends [she's] in love.”

If the rumors are true, Simpson knows she has her father Joe on her side. “I love John Mayer,” he told PEOPLE on Tuesday. “I love his music. I love his talent.”

Simpson has been through a lot this year, and her father has much to say on that fact. Essentially, he’s concerned with her happiness and emotional well-being. “If my daughter’s happy, then I’m happy. And if she finds love, then I’m in love with the fact that she finds happiness,” Joe said.

Interestingly enough, Simpson and Mayer first met when she was still married to Nick Lachey.

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Fans who lined up to catch John Mayer in concert at Dodge Music Center were disappointed Saturday night. Event organizers decided that Sheryl Crow and opening act Mat Kearney would perform with Mayer. The problem? Laryngitis.

With such hits including “Your Body is a Wonderland” and “Daughters,” Mayer has won over countless fans with his melodic vocals and heart wrenching lyrics.

“John feels terrible about the cancellation and he will plan to be back in Connecticut soon,” a press release stated about the event.

Full story here.