The 'Someone Like You' singer announced the sad news in a handwritten letter to her fans at the Wembley Stadium shows this week.
Marvin Humes and Rochelle Wiseman are engaged!
JLS Marvin has proposed to The Saturdays Rochelle on holiday in the Caribbean and she's said yes! Take a look at the ring!
The couple took to their Twitter to announce the news.
Rochelle confirmed the news on the social networking site.
Posting a photo of the couple and her wearing her engagement ring, Wiseman wrote: "Its official Marvin proposed 2me 2day,wanted 2 tell u b4 some1 else did!SO excited 2 b Mrs Humes.x".
Marvin too posted the news on @jlsofficial on Twitter, saying: "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".
"Thank you so much for all the love.We are the happiest 2 people in the world.A perfect start to 2012.This year is gonna be massive.Luv ya!Mx" he later added.
Humes' bandmate Oritsé posted a message on the social networking site to congratulate the happy couple: "First JLS marriage!! Gwaaann Marv and Roch!! Thats ..Congrats!!! Ori x x x x".
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