Sarah Harding completes Girls Aloud messages to Cheryl and Liam as girlband visit newborn baby boy

Cheryl and Liam Payne welcomed their baby boy earlier this week And since the One Management star broke the news on Saturday March 25, congratulatory messages have flooded in for the pleased couple.  Cheryl’s Girls Aloud bandmates all shared sweet messages to the new mum, with Sarah Harding rounding off the heartfelt posts to the 33 year ancient.  Sarah wrote to…