Kevin Federline feels underrated as a rap star. The fledgling rapper - who is married to Britney Spears - has said that while everyone is always talking about him, they don't give his music the attention it deserves. Federline said told Entertainment Weekly: "I'm the most talked-about of anyone over the last couple of years. "When asked to name the most underrated performer in rap, Federline paused and then said, "Me. "The former dancer also revealed he has overcome the embarrassment of buying female hygiene products for his wife. He said: "I used to be embarrassed to go to the store and buy tampons, but that's all past tense. Once you make it through that, then you're good."Kevin's debut album 'Playing With Fire' was recently branded a "joke" by the hip-hop community. Meanwhile, Kevin and Britney Spears' six-week-old son is called Jayden James Federline and not Sutton Pierce. The child's real identity was revealed on a birth certificate filed at the Los Angeles County Registrar-Recorder's office on Tuesday (10.24.06). According to the documentation - which was signed by Kevin - Jayden James was born at 1:11 AM on September 12 at Cedars-Sinai Medical Centre in Los Angeles. Since Britney gave birth it has been widely reported that the baby's name is Sutton Pierce Federline, giving him the same initials as his big brother, one-year-old Sean Preston.