A preview of Jennifer Lopez's new single has appeared online.

The track, called 'Dance Again', features Pitbull, who had previously collaborated with the singer on her 2011 album 'Love'.

The 20 second clip showcases a summer feel and a bouncing chorus line.

Jennifer Lopez meanwhile has been busy recently denying rumours about her love life, with gossipers going into overdrive.

As previously reported, the singer was forced to clarify rumours of a potential wedding between her and boyfriend Casper Smart after a Twitter hacker forced their way into a fashion designer's account, tweeting that they were making a wedding dress for Lopez.

A rep for the singer also later denied rumours that the pair had secretly married in Mexico.