A source told Yahoo OMG! that the 'Fight for this love' hit maker sang at the top of her voice through her tattoo, which consists of large roses stretching up her back, to dull the pain, the Daily Star reported.
The insider said that the former Girls Aloud star had a good nights' sleep before each session and didn't drink to numb the pain.
The source asserted that Cole was singing her heart out, and if someone had recorded it they could have made a fortune from the session.
The singer had spent a whopping 14,000 pounds on the tattoo that has been heavily criticized.
--ANI (Posted on 06-09-2013)