Rochelle Humes showcases her slender limbs in orange shirt dress as she films The Xtra Factor in London with co-host Melvin Odoom

Auditions for the upcoming season of The X Factor are well and truly underway, with the judges working hard to find the next biggest singing sensation.

But despite the gruelling schedule, Rochelle Humes looked immaculate when she stepped out in London on Thursday afternoon to film spin-off show The Xtra Factor.

The 26-year-old presenter, who is married to JLS hunk Marvin Humes, paraded her lean and slender limbs in a vibrant orange shirt dress, elongated with a chic pair of strappy black heels.

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Classy lady: Rochelle Humes looked immaculate when she stepped out in London on Thursday afternoon to film spin-off show The Xtra Factor

Classy lady: Rochelle Humes looked immaculate when she stepped out in London on Thursday afternoon to film spin-off show The Xtra Factor

The zesty number, clinched at the waist with a thin leather belt, covered her toned curves perfectly while accentuating her slim waistline.

Wearing her long golden-tinted tresses away from her face, Rochelle accentuated her striking facial features with a vibrant pop of pink lippy, a dusting of peach blush and a few swipes of shimmery eyewear.

Accompanied by her co-host Melvin Odoom, the Saturdays star appeared to be having a wonderful time while goofing around on set with potential hopefuls.

She's got the X Factor: The Saturdays star appeared to be having a wonderful time while goofing around on set with potential hopefuls

She's got the X Factor: The Saturdays star appeared to be having a wonderful time while goofing around on set with potential hopefuls

Not alone: The 26-year-old presenter was joined by co-host Melvin Odoom

Not alone: The 26-year-old presenter was joined by co-host Melvin Odoom

Zesty: Rochelle, who is married to JLS hunk Marvin Humes, paraded her lean and slender limbs in a vibrant orange shirt dress, elongated with a chic pair of strappy black heels

Zesty: Rochelle, who is married to JLS hunk Marvin Humes, paraded her lean and slender limbs in a vibrant orange shirt dress, elongated with a chic pair of strappy black heels

Bright move: The zesty number, clinched at the waist with a thin leather belt, covered her toned curves perfectly while accentuating her slim waistline
Bright move: The zesty number, clinched at the waist with a thin leather belt, covered her toned curves perfectly while accentuating her slim waistline

Bright move: The zesty number, clinched at the waist with a thin leather belt, covered her toned curves perfectly while accentuating her slim waistline

The mother-of-one is clearly relishing her new job as she took to her social media sites the night before to say: ‘Just getting to bed after a long day in London. What fun me and @Melvinodoom have had...We have laughed from start to finish #lovemyjob’

It was announced last month that Rochelle and Melvin were taking over Sarah-Jane Crawford's role as the faces of the popular ITV2 series.

Speaking at the time about her latest venture, the singer said: ‘I have watched The Xtra Factor for years so I am beyond excited about joining such a brilliant team and getting to work with my old friend Melvin makes it even better.’

Jumping for joy: The two presenters appeared to be having fun during filming 

Jumping for joy: The two presenters appeared to be having fun during filming 

A beauty: Wearing her long golden-tinted tresses away from her face, Rochelle accentuated her striking facial features with a vibrant pop of pink lippy, a dusting of peach blush and a few swipes of shimmery eyewear

A beauty: Wearing her long golden-tinted tresses away from her face, Rochelle accentuated her striking facial features with a vibrant pop of pink lippy, a dusting of peach blush and a few swipes of shimmery eyewear

Need help? A potential hopeful was seen helping Rochelle with her party hat 

Need help? A potential hopeful was seen helping Rochelle with her party hat 

This new job means that Rochelle will be going head to head with her husband Marvin, who hosts BBC One's singing competition The Voice UK with co-host Emma Willis.

Meanwhile, Olly Murs and Caroline Flack were confirmed as the first ever duo to host the UK X Factor in April after long-running host Dermot O'Leary stepped down from his post.

This year Simon Cowell and Cheryl Fernandez-Versini return as judges along with newcomers Rita Ora and Nick Grimshaw.

Happy days: The mother-of-one is clearly relishing her new job as she took to her social media sites the night before to say, ‘Just getting to bed after a long day in London. What fun me and @Melvinodoom have had...We have laughed from start to finish #lovemyjob’

Happy days: The mother-of-one is clearly relishing her new job as she took to her social media sites the night before to say, ‘Just getting to bed after a long day in London. What fun me and @Melvinodoom have had...We have laughed from start to finish #lovemyjob’

Latest stint: It was announced last month that Rochelle and Melvin were taking over Sarah-Jane Crawford's role as the faces of the popular ITV2 series

Latest stint: It was announced last month that Rochelle and Melvin were taking over Sarah-Jane Crawford's role as the faces of the popular ITV2 series

Goofing around: Melvin tries to lift Rochelle up as they lark around during filming

Goofing around: Melvin tries to lift Rochelle up as they lark around during filming

Wax on, wax off: At one point it looked like Rochelle was trying to do Karate Kid moves

Wax on, wax off: At one point it looked like Rochelle was trying to do Karate Kid moves

Laugh a minute: Rochelle and Melvin certainly looked like they were enjoying themselves

Laugh a minute: Rochelle and Melvin certainly looked like they were enjoying themselves

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