Former Westlife singer Brian McFadden is involved in a bitter custody battle over his two daughters with estranged wife Kerry Katona. The Irish pop star has threatened to "drop bombshells about Kerry" if that's what it takes to get better access to Molly, four, and Lilly Sue, three.

McFadden, now dating Australian singer Delta Goodrem, allegedly received a letter from former Atomic Kitten star Katona, which he claims is making it difficult to see his kids.

He says, "I've been driven to this. If I have to drop bombshells about Kerry in court, to get my kids then I am prepared to do that. I'm doing it for the kids. I know they want to be with me. I will tell the truth and let the judge decide."

Katona says, "Brian should not expect to see the girls at a drop of a hat wherever and whenever it suits him. The last thing I would want is for Brian not to see the children. I lost out myself on not having a father around when I grew up and would naturally hate for my daughters to experience what I went through."

Since McFadden left the band, oft-troubled boxer Mike Tyson has expressed an interest in singing for the group. Really.

(This news article provided by World Entertainment News Network)