Girls Aloud star Nicola Roberts has revealed she has written songs for the new album from former bandmate Cheryl Cole.

Sharing the news on Twitter, Nicola told fans: "I have loved writing for Cheryl! So much fun! Sometimes a heavy heart has come, being a best friend & writing from that perspective for her. Can't wait for you to hear her new music."

Cheryl's fourth solo album is expected to be released later this year, following her return as a judge on the new series of The X Factor.

Cole has also teamed up with Eminem songwriter Jon Bellion for her new material.