Justin Timberlake (Photo: Scott Halleran)Those who have all but forgotten about Justin Timberlake as a musical powerhouse—hey, don’t laugh, his last album was in 2006, and that’s an eternity in today’s instantaneous media world—were startled on Wednesday night when the singer-cum-actor/businessman posted a cryptic tweet, promising a big announcement the following morning.

Within an hour, Timberlake was a top trend on Twitter. Thursday morning, Timberlake directed fans to a YouTube clip in which he indirectly announces his intent to create new music.

For those not paying attention--and that's pretty much all of us--this seemed to come out of nowhere. Why now, after so long? (As various outlets have pointed out, George W. Bush was president and iPhones didn't exist when we last heard new music from Timberlake.)

Theories have bounced around in the short period between his tweet and reveal; including half-humorous, half-serious musings whether he’s just gotten sick of his other pursuits, which include an avid golf hobby. There’s even the idea that his new wife Jessica Biel may have goaded him into it, although that’s unlikely.

Timberlake himself explains his decision to step away and return from the recording studio in typical superstar’s navelgazing fashion, saying that music “means more to me than anyone else in the world” and that he is “obsessive about it,” which is why, basically, he’s only released two solo albums over a decade.

If you’re like most people out there, the music you choose to listen to every day varies with the state of mind or activity you’re currently engaged in. After all, who wants to hear chill-out tunes when you’re about to start your cardio workout—or heavy metal at the end of the day when you’re sipping chamomile tea?

Taking this into account, wouldn’t it be cool if you could actually program your “musical day”—so you’re all set to go with a soundtrack that will motivate and enhance whatever it is you’re about to do, as you do it?

Never fear- iHeartRadio is already on the case. The popular digital radio service unveiled a new update on Monday called “Perfect For”-- which will allow music lovers to search for tunes that are, as the name suggests, just right for whatever they’re up to at the moment.

Was the Beatles’ breakup partly due to the fact that the semi-democratic band was on the verge of turning into “Paul McCartney and the Beatles”?

“John, in fact, was not the first one who wanted to leave the Beatles,” says Yoko Ono in a newly released interview. “Ringo one night with Maureen (Starkey, his first wife) came to John and me and said, well, he wanted to leave. And George was the next, and then John. Paul was the only one who was trying to hold the Beatles together. But then again, the other three felt that Paul was going to hold the Beatles together as his band. They were getting to be like Paul's band, which they didn't like.”

McCartney and Ono (Lester Cohen/WireImage/Getty Images)If John Lennon’s widow sounds a little less conciliatory and political about this than she has lately, that’s because this is the still slightly bristling Yoko Ono of 1987, who has come to us in a time machine to offer some thoughts less filtered by the passage of time. Her lengthy take on the breakup is a big chunk of a previously unpublished

Jimmy Buffett was born on Christmas day, 65 years ago. Or, as he once put it in the liner notes for a holiday album he released back in 1996, he is “the Christmas war baby turned island boy born on the day W.C. Fields died.”

Jimmy Buffett (Rick Diamond/Getty Images)But when it comes to receiving, every day must feel like Christmas for the entrepreneurial singer, one of the world’s wealthiest musicians. The website Celebrity Net Worth has guesstimated his fortune at $400 million, which by their calculations puts him behind only Paul McCartney and Bono and ahead of Elton John and Mick Jagger.

Never mind that he hasn’t had a song in the Billboard pop Top 40 that was not a featured cameo on someone else’s single since 1979. His guest appearance on Alan Jackson’s country smash “It’s 5 O’Clock Somewhere” nine years ago gave him a rare taste of post-1970s airplay. Otherwise, he hasn’t been able to get arrested at radio in decades. And he’s boo-hooing all the way to Margaritaville—which is, from all appearances, a multibillion dollar