Spears' vocals were a warm-up exercise, says William Orbit
Midweek chart update also reveals Lily Allen is on course to return to Number One in Singles Chart
The popstar was spotted wearing a Virginia Tech hoodie and then brandishing a gun
Producer worked on track for US star's forthcoming studio album 'Britney Jean'
Preview of show to be held in New York on November 7
Navy officers play songs including '...Baby One More Time' to ward off criminals on the high seas
The pop star will release her eighth LP on December 3
Actor tweets pop star following claims she did not like final episode "at all"
Larry Rudolph also gives update on singer's new album
Former Swedish House Mafia producer was believed to have worked on popstar's new single
The track, taken from her forthcoming eighth studio album, was due for release tomorrow (September 16)
'Toxic' singer has also had sessions with a choreographer
Producer Naughty Boy reportedly wants to take Spears to Cumbria for creative inspiration
Leaked financial documents show Britney's love for a bargain – she spent nearly £50 at 99c stores
The track is taken from the upcoming 'Smurfs 2' soundtrack
Meanwhile, Les Misérables soundtrack becomes the first film cast recording to top the Official Albums Chart in almost 16 years
Singer will reportedly earn around £625,000 per night
The news follows rumours that the singer was set to resign from her position as a judge on the talent show
Sources say that star's stint on reality show 'isn't working'
Taylor Swift, Rihanna, Lady Gaga and Katy Perry all included