Healy, 30 and fiance Forden, 26, who become parents to daughter Aoife Belle in March, wed in a quaint country church in Tipperary on June 30, reported Daily Mail.
The singer's bandmates Vanessa White, Mollie King, Rochelle Wiseman and Frankie Sandford were her bridesmaids.
Healy wore a white dress patterned with poppies, and kept comfortable in flat sandals as Forden looked dapper in a navy jumper and jeans.
The day before the nuptials, Healy went for a few drinks with her friends and posted a couple of pictures on her twitter account with the captions.
"Having a last single drink with my old pal smarties!! And all the single ladies!!," she tweeted.