Rochelle Wiseman, 22, of The Saturdays and her JLS boyfriend Marvin Humes have officially announced their engagement. 

Writing on her official Twitter account on New Year's Eve, December 31, the 'All Fired Up' singer shared the exciting news with her 407,000 followers and included a photograph of the very impressive ring:

"Its official Marvin proposed 2 me 2day, wanted 2 tell u b4 some1 else did! SO excited 2 b Mrs Humes.x"

Humes also took to his group's Twitter page to tell their fans about the celebration and added: "Happy New Year everyone!!! So everyone hears it from me..Rochelle and I are engaged!! Party time tonight! Have a great one..All love..Marv x"

The couple have been together since 2010 and despite a brief separation during that same year have remained in a loving and commited relationship. 2012 will undoubtedly be a big year for The Saturdays as member Una Healy is also expecting her first child with fiance Ben Foden.