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20 May 2013, 14:06 | Updated: 20 May 2013, 14:17
The couple have named their first daughter Alai-Mai with the JLS man revealing "mum is doing great".
Rochelle Wiseman has today (20th May) given birth to her and husband Marvin Humes' first baby.
The news was broken by the Capital presenter and JLS man who took to Twitter to reveal the couple's joy to the world.
"This morning we welcomed our baby girl Alaia-Mai Humes..Mum is doing great & baby is amazing! We are both overjoyed! Thanks for your love x," he wrote.
The Saturdays star gave birth to a baby girl, who the couple have named Alaia-Mai.
Rochelle is the second member of The Saturdays to give birth after Una Healy welcomed her first child last year. Their band mate Frankie Sandford recently announced that she is pregnant.
Marvin and Rochelle married last year during a ceremony that was attended by a host of big name stars, including One Direction's Harry Styles.
You can hear Marvin Humes' show on Capital every Friday from 7pm.