Speculation is high that Michael Jackson will announce a comeback tour in London this week. The King of Pop has scheduled a news conference at the O2 arena in London, where the concerts are likely to take place later this year.

The 50-year-old last performed in 2006, but the much-hyped return of the gloved one was a critical flop after he sang only a few lines of "We Are The World."

Jackson has kept a low profile since his acquittal in 2005 of child sex abuse charges.

In other comeback news - pop diva Britney Spears kicks off her Circus Tour in New Orleans on March 3rd. A rehearsal video reveals that Brits is keeping things sexy as usual. It also shows the tour's Circus theme. The 26-city tour is seen as a bit of a comeback after a prolonged breakdown in the public eye in 2007 and 2008.

Talk about being specialized - a university in Liverpool has launched a Master of Arts degree in The Beatles. 40 years after the Fab Four broke up, it's the first qualification of its kind chronicling the city's most famous sons.

Liverpool Hope University's course entitled "The Beatles, Popular Music and Society" consists of four 12-week modules and a dissertation.

And in a sign of the times, rock star Prince announced an exclusive deal to release his latest album through retail giant Target. It follows in the steps of AC/DC and Bruce Springsteen who teamed up with Wal-Mart for exclusive distribution deals.

The music will be available in stores March 29th.

Want to see more? Just follow the link to: Talk of the town: Britney on tour.