Saturday's star Rochelle Humes expecting first child with hubby JLS's Marvin

Popstars Marvin and Rochelle Humes - who tied the knot in July - have announced they are expecting their first child next year.

The JLS singer and the Saturdays popstar - who tied the knot in a star-studded ceremony at Blenheim Palace in Oxfordshire in July - will welcome the new arrival in 2013 and cannot wait to become parents.

Rochelle, 23, wrote on twitter: "I wanted to be the first to tell you ...we have some exciting news to share! Marvin and I could NOT be more thrilled to announce that we are expecting our first child mid next year.

"We have always dreamt of being parents and the news is the best early Christmas present we could have asked for (sic)."

Rochelle also gushed about what an amazing father her husband will be.

She added: "I know Marvin is going to be a great dad and we're so excited to start a family. Thanks for all your support and lots of love, Rochelle x (sic)."

Marvin, 27, took to the official JLS twitter page to share his excitement.

He wrote: "Rochelle and I are SOOOO excited to tell everyone that we are expecting our first baby!!! It is absolutely amazing! Baby is due middle of next year and all is great!! We want to say thank you to everyone for their love and support...it means so much to us!!! We are over the moon. Love Marv x (sic)."