Geri Halliwell has revealed she was scared to join Twitter in case she was judged for her tweets.
The former Spice Girl was reluctant to sign up to the micro-blogging site because she feared a backlash from followers, reported The Sun.
Look At Me singer Geri, 40, put off signing up to Twitter for ages but has now blogged about how it helped her step outside of her comfort zone.
She wrote: "I felt resistant to things outside of my comfort zone like social media, I was the last Spice to join Twitter.
"I felt overwhelmed, fearful, I didn't want to participate, I wanted to protect myself from judgment, but in doing so I was missing out on a lot of fun.
"Who was I fooling? Certainly not myself, not any more... But something has changed in me, I realised how insulated and stuck I had become...
"Twitter is my new playground, it's so liberating to be silly, foolish, to not care if I look like a silly cow."
Last month Geri used her Twitter account to document her first trip on London's Tube for 17 years and offered public transport trips to her followers.
She tweeted photos of herself on her journey from Leicester Square to Piccadilly Circus with the comments: "Loved it! I'm a Londoner! I'm liberated!!".
And later: "Tube tip - doors stops at platform entrance,or below sign ,more seats at end carriage.oh & it's not smelly just saying."