Kevin Federline delays album.

Aspiring rapper Kevin Federline has reportedly delayed the release of his debut album so he can add a duet with his pregnant wife Britney Spears. Former dancer Federline is anxious for “Playing With Fire� to be a success, so has postponed its planned release next month reports Star Pulse

An insider tells British newspaper The Sun, "He will be rapping over her singing. But people are warning it could be a career move for Britney."

Britney Spears and Kevin Federline recorded a series of duets during a marathon singing session.

Federline hopes the collaborations will eventually kill tabloid reports the pair is set to split reports Female First.

Federline tells USA Today, "It's not really a love song. It gives my point of view on how my family is and how tight my family is.

The couple, who have been married for two years and are expecting their second child in September (06), have been a frequent target for the tabloid

Federline says, "Even with the bad stuff, you go through it, and it just makes you love each other even more. Well, in our case at least."