Britney Spears set off a firestorm when she announced a two-year stint at Las Vegas' Planet Hollywood Resort and Casino last week.
The pop music icon excited fans when she appeared on "Good Morning America" with news of 52 shows that kick off in Sin City on Dec. 27.
However, show business insiders revealed that Spears concertgoers may be disappointed by the "Britney: Piece of Me" shows, since the singer will likely resort to lip-syncing throughout them.
"Britney does not sing," said a source at the New York Daily News. "She is being paid a lot of money to lip-sync. Her fans are none the wiser, but it is disingenuous of her to take their cash and not deliver a proper performance."
Disputing the reports, Spears' representative said, "Britney will be singing. As stated before, she is in vocal training- has been for months," according to NY Daily News.
The scuttlebutt about Spears lip-syncing during the performances has resulted in conflicting reports about ticket sales of the upcoming concert series. Some are saying that sales are dismal, while Spears' team says, "It's the best-selling show in the history of Vegas."
Nonetheless, TMZ reported that sales are indeed flourishing, despite reports of Spears' alleged tendency to lip-sync.
Tickets to the first 16 shows are available for purchase online, and an impressive total of 70,242 tickets of the available 73,600 have already been sold.
The remaining 3,358 tickets are those in the nosebleed section of the venue, TMZ reported.
"Britney: Piece of Me" will include 48 shows over the next two years. The shows will begin just weeks after Spears is expected to release her latest album on Dec. 3.
Tickets to Spears' Las Vegas shows are available on Ticketmaster.
Some reports indicate that more shows may be added to "Britney: Piece of Me," which would increase the $15 million Spears is already making from the deal, according to TMZ.
As for the songs during the show, Spears is expected to perform 21 of her greatest hits over the course of the 90-minute performances.
"I'm going to definitely do the greatest hits, but I'm going to have to put some of my new material in it to keep it fresh," Spears explained while on "GMA."