JLS star Marvin Humes is "so proud" of his wife Rochelle and the rest of The Saturdays after concentrating on launching their success Stateside.

The popular UK-based girl band - also comprising Una Healy, Mollie King, Frankie Sandford and Vanessa White - have recently returned to England after doing a promotional tour in the US for the their new reality show 'Chasing The Saturdays.'

JLS singer Marvin - who is currently expecting a child with stunning singer Rochelle - took to his Twitter page today to gush about the girl band's hard work over the past couple of weeks.

He wrote: "So proud of @RochelleTheSats & the rest of @TheSaturdays for the past 2 weeks.. They've worked SO hard and deserve all the success coming Mx (sic)."

The Saturdays embraced their time in America with a live performance on iconic 'The Tonight Show with Jay Leno'.

The ladies treated the studio audience to a rendition of 'What About Us' and thanked the host via their official Twitter page for allowing them to be a part of his programme: "Mr @JayLeno! Thanx for having us on your show!"

The girls - who also performed at a Golden Globes after party during their time in America - spent time in Los Angeles last summer to film their hotly-anticipated programme.