From Friday, Una will be sharing all her news in a three-time-a-week blog that will cover everything from beauty and fashion to her family and band updates.
"I am so excited. It's something completely new for me," the chatty star told HELLO!. "I love taking and sharing photos so that's something you can definitely expect to see."
Una has had plenty to celebrate recently. Last month, the devoted mum and her husband Ben Foden treated little Aoife Belle to a Disney-themed first birthday party.
She also toasted success with her bandmates as the girls achieved a first of their own — a number one single. "We had a big party with all our friends and family," she revealed. "But after that it was straight back to work. It's busy in the Sats camp, we've got lots of exciting things coming up."
Check back on Friday for Una's first HELLO! Online blog instalment.