Cheryl, Nadine, Nicola and Kimberley took part in a 5km run to raise money in memory of their former bandmate who died of cancer last year.
“Grief is such a harsh experience and an absolute rollercoaster of emotions," the singer wrote on Instagram.
“Although we knew this day would arrive I am somehow still feeling at a loss for words."
The singer celebrated turning 38 with her bestie and former bandmate, Kimberley Walsh.
The former X Factor judge and Girls Aloud singer won't go back to being as busy as she was prior to her break.
The former Girls Aloud singer has broken her year-long social media silence.
From Ablisa and Wagner, to One Direction and Cher Lloyd, the 2010 series featured many memorable contestants.
Due to travel restrictions, it's unclear if Bruno will be able to fulfill his role as a judge on this year's series.
Madonna and Katy Perry have also fallen for other versions of the video.