Billboard chart manager Keith Caulfield noted that Gaga became the first act to occupy the chart's top three positions, in its nine-year history.
The R&B singer Usher has left his manager, Billboard reported.
"Top 40 programmers are a little hesitant to play some of the younger Disney acts," said Gary Trust, Billboard's chart manager.
In a recent interview with Billboard, Spears' longtime manager, Larry Rudolph, spoke about the story behind the kiss.
Billboard's chart managers declined to comment for this article, but over the years the magazine has often tweaked its algorithms to reflect changes in the marketplace.
A tug on the rope causes music to play and lights up a number on the electric billboard overhead, showing managers where a worker needs help.
"She's been able to successfully migrate from country to pop but still maintained credibility in country," said Keith Caulfield, Billboard's senior chart manager.
Carey's manager told Billboard that they'd alerted producers to the supposedly malfunctioning earpieces ten minutes prior to showtime, but were forced to charge on regardless.
In an interview with Billboard, Mr. Springsteen's manager, Jon Landau, defended the release, saying Mr. Springsteen's albums were already in Wal-Mart, which accounts for 15percentt of his sales.
According to Keith Caulfield, chart manager for Billboard, "Because of Amy, or the lack thereof, the marketplace was able to get singers like Adele, Estelle and Duffy," "Now those ladies have brought on the new ones, like Eliza Doolittle, Rumer and Ellie".
Bob left Billboard to become general manager of the rival weekly Cash Box circa 1950, where he met and worked closely with Sid, a City College graduate who joined in 1951 and rose through the ranks to become editor-in-chief.
