Maroon 5 launches a six-date club tour in support of their new LP. The band’s May 22 release, It Won’t Be Soon Before Long, will be succeeded by the quick trip, which hits small venues in Boston (May 30), San Francisco (June 1), Los Angeles (June 2), Minneapolis (June 7), Miami (June 9) and New York (June 11).

Slayer and Marilyn Manson have announced that they will co-headline a North American major-market summer tour beginning on July 25 on the East Coast. Plans are for the tour to play some twenty-five cities and wrap up early September on the West Coast.

Plans are for the tour to play some twenty-five cities and wrap up early September on the West Coast. A full, confirmed schedule will be announced shortly.

Manson and Slayer will each play full sets, and two support bands, yet to be determined, will open all shows.

Britney Spears fans snapped up tickets on Tuesday to three Southern California concerts by an obscure band known as The M+Ms on rumors that the oft-troubled pop diva would stage a surprise performance at one of the shows.

A publicist for Spears was not immediately available for comment. A spokesman for Live Nation, the concert promotion company that recently bought the House of Blues chain where the M+Ms were to appear, would not comment on the rumors of a Spears show.

The M+Ms shows were to take place on Tuesday, Wednesday and Thursday. Spears’ singing career has remained dormant since her marriage to Kevin Federline in 2004, after she shot to fame as a teenager in 1999 and selling an estimated 70 million records.

Both celebrity Web site TMZ.com and MSNBC cited the Spears concert rumor. MSNBC reported that the “current buzz” was that Spears will make a surprise appearance at one or more House of Blues clubs this week after canceling a show she had planned for Wednesday at a Los Angeles club called Forty Deuce.