The trainee doctor kept a protective hand on little Amelia's head as the tiny baby cuddled into her shoulder outside the central London studio on Tuesday (27 May).
Emily had taken Amelia to support Peter during a taping of Loose Women that day, where he spoke proudly of both the girls in his life.
Describing Emily as "super mum", the singer went on to say Amelia is now sleeping through the night and into a happy routine.
Emily gave birth to Amelia on 7 January 2014 at Musgrove Park Hospital in Taunton, Somerset.
It is Emily's first child and Peter's third. He's also dad to son Junior and daughter Princess from his marriage to ex-wife Katie Price.
Speaking recently, Peter said: "I hope Amelia takes everything after her mother. When she grows up and gets asked, 'What does your mum do and what does your dad do?' She's going to be really proud of mum."
Emily was studying at medical school when she began dating Peter and very soon she'll be a qualified doctor - and Peter could not be prouder if he tried!
"I'm proud of Emily," he told us. "She's going to finish her medical degree. People thought she wouldn't once she had the baby but there was no way she was going to give it up."
While Emily has been juggling new motherhood with her studies, Peter has been busy working on his new album Big Night, which is a mixture of big band and soul music inspired by a recent visit to New Orleans and his love of artists like Elvis Presley and Stevie Wonder.
He recently released the music video for the album's title track.
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Watch Peter's music video for 'Big Night' below:
Stars who welcomed babies in 2014 in pictures:
Copyright: Rex Features WENN/Matthew Taylor/Daniel Deme/Josiah True/Matthre Taylor/Joe