London: Pop star Cheryl Cole reportedly wants to become a "big sister" to Britney Spears and teach her how to become normal again after suffering from a public meltdown.

The 28-year-old 'Fight For this Love' hitmaker wanted to help Spears - who suffered a public meltdown culminating with her shaving her head, divorce from Kevin Federline, erratic behaviour, forced psychiatric hospitalisations, and losing custody of her two sons, a website reported.

"She used to talk about Britney Spears. She kept saying she wanted to help Britney - that she thought she could become like a big sister to her and make her normal again after all her crazy behaviour," a source said.

Cole was sacked from the judging panel of talent show 'The X Factor' after only four days of filming earlier this year.

She has since returned to the UK, where she has kept a low profile and reportedly reunited with her ex-husband Ashley Cole.