Myleene gave birth to a baby girl weighing 6lbs 2oz on 25 March.
Klass and her husband Graham Quinn decided to call her Hero.
The couple already have a child together, three-year-old Ava.
Simon Jones, Klass' spokesman said: "Mother and baby are both very well. Myleene, Graham and Ava are all very proud and excited about the arrival of baby Hero."
22,000 people agreed to clean toilets for WiFi because they did not read the terms.
Tools designed to ensure computer code in smart cars does not crash has been inspired by hungry penguins.
The rounded sleeping capsules send guests drifting into ocean before arriving on desert island by morning.
Sitting on the saddle activates the part of the brain responsible for learning, a study has claimed.
Scientists are appealing for more people to donate their brains for research after they die.
Life on Earth may have arrived from Mars on an asteroid, scientists have claimed.
Lunar mission scheduled at the end of 2017 could find out if beer can be brewed on the moon.
A bottle used to teach children how far litter can travel ended up on Scottish beach after 8,700-mile journey.