Calvin Harris and Florence Welch score second Number 1 with 'Sweet Nothing'

Calvin Harris and Florence Welch have secured their second collaborative number one single in three months as "Sweet Nothing" topped the official UK singles chart. (Getty images)

Calvin Harris and Florence Welch have secured their second collaborative number one single in three months as "Sweet Nothing" topped the official UK singles chart.

The power couple have clinched the top spot with the track - taken from the Calvin Harris' upcoming album 18 Months - exactly three months after their summer smash "Spectrum" was number one.

The duo knocked Swedish House Mafia off the top of the pile as their track "Don't You Worry Child" slipped to number two.

Adele's Bond theme, "Skyfall", which went in at number two last week, fell to number five just days before the film's general release.

Meanwhile, Jake Bugg, Nottingham's much-hyped singer-songwriter has denied superstar Leona Lewis her third consecutive number one album by shooting straight to the top of the album chart.

The 18-year-old has seen affectionate endorsements from Chris Martin, Lily Allen and Noel Gallagher, with the latter having roped him in for an extensive US tour along with Snow Patrol.

Lewis was further pipped by Mumford & Sons, whose sophomore release Babel finishes the week at number two, just ahead of the X Factor winner's third album Glassheart at number three.

Another X Factor star making an appearance was Rebecca Ferguson as the deluxe version of her debut album Heaven went in at number five.

In a big comeback, Art Garfunkel scored his first solo top 10 in 32 years as new compilation "The Singer" entered the chart at number 10.

PA