Una gushes about the Canadian singer
The Irish singer remarked on the Boyfriend star's velvety-smooth face when she met him and gave him a kiss on the cheek.
In an interview with comedienne Joan Rivers on Fashion Police, she said: "Justin Bieber was on a TV show with us and I remember I went in for the kiss on the cheek, and he's got baby soft skin."
Talking more about Rochelle's pregnancy, Frankie shared their grand plans if the baby is a girl, joking: "We're hoping it's a girl so one day we can do a mini Saturdays."
With Una's cute baby girl Aoife, they'd only need three more to complete the set!
The girlband are currently promoting Chasing The Saturdays, their fly-on-the wall US documentary which starts on 20 January.
Will it give them the exposure they need to break the States?