It's not a matter of if Britney Spears will lip-sync during her residency at Planet Hollywood Resort & Casino in Las Vegas but when.
Spears's manager, Larry Rudolph, tackled the question head-on during a new interview with Billboard. Rudolph, who also manages Miley Cyrus, said Spears would likely sing over a backing vocal track only while doing heavy dancing.
"She's going to be singing live," he insisted. "She does choreography and vocal coaching every day. The vocal coaching is really just to strengthen her voice and get her to a point where she can go out there every night and do a full show."
Rudolph said singing live is tough when the choreography is intense and added that it's common for performers to have the vocal assist.
"No matter what anyone says, there's not a single artist who goes out there and does full choreography and is singing without a vocal track underneath them at the same time," he said. "It's physically impossible. "
Rudolph said the goal is to have Spears singing live as much as possible.
"We're just trying to build up her stamina and get her to a point where she can do as much as humanly possible. The idea is to try to get her pretty close to 100 percent. There might be some numbers where she's full out dancing with a [vocal] track underneath her, but there won't be any lip-syncing across the board on anything."
Rudolph also dismissed reports that ticket sales for the Vegas residency are low. He blamed inaccurate reporting.
"You have these idiot tabloid reporters who are completely irresponsible and love taking pot shots at Britney," he said. "One guy did it and everybody else picked it up. It's based on nothing, other than an 'industry insider,' who they'll never disclose. But it's damaging to Britney. So we had to go on the offensive and put out correct information to counteract it."
The pre-sale has been successful, Rudolph said.
"When we went on sale with our pre-sale, we sold out every single VIP package for all 16 shows," he said. "We had to create new ones just to fill some of the demand, because people were starting to get pissed off that there weren't enough out there."
Show promoters Caesars Entertainment told Rudolph that tickets were selling well compared to other events.
"Caesars told us that a highly successful launch would be selling 10 percent of the ticket stock on the sale. I think we either tripled or quadrupled that," he said. "They told us it was literally the best on-sale they'd ever had. Now they've come back to me and asked if it's OK to put the next round of dates on sale sooner than we had originally discussed. They haven't given me an exact date for it yet, but I said of course."
Spears's two-year, 50-date residency begins on December 27 in the 4,600-set venue. She will perform 21 of her greatest hits in addition to new songs from her new album, which drops December 3.