London, Feb 16 (IANS): Members of British band One Direction are taking Zumba classes.

Liam Payne, Harry Styles, Niall Horan, Louis Tomlinson and Zayn Malik have taken to early morning Latin dance fitness sessions as part of their bid to be in top shape ahead of their world tour, which begins here later this month.

"The lads are not natural movers so them dancing to Latin music is a sight to behold. But they know it is good for fitness, so they are putting in the work," a source told thesun.co.uk.

They are also taking part in touch-spinning classes and have been ordered by their management to curb their partying and late nights ahead of the concerts.

It was revealed late last year that the group were told to shape up for the tour.

"We are concerned about them. Liam is still healing after he broke his toe when his MacBook fell on it this summer in the US. Zayn and Niall have both been on crutches so now they're all on hardcore fitness regimes," a source said in November 2012.