Justin Bieber is set to release a song about the woman who claimed she had his baby. The Canadian singer has written a track about Mariah Yeater, who alleged he was the father of her son Tristyn five months ago. The 18-year-old has denied the accusations and will sing about them on his forthcoming LP, Believe. "I'm going to be talking about everything I'm going through,” he told Heatworld.com "I've written a song about that whole situation with that girl who said she's having my baby - Mariah Yeater. I've written about my mom, loads of things I'm going through." Justin, who recently released his new single Boyfriend, believes he is great to his girlfriend Selena Gomez. He enjoys spending time with her and spoils her whenever possible. "Yeah, I think I'm a great boyfriend because you have to be honest and patient with girls... 'Cause sometimes they can give you a headache,” he said. “If you spend time doing things from the heart, then girls like that kinda thing. Presents are just something from the store." Justin’s comments come after he blasted Mariah’ claims about the paternity of her child on Twitter. He poked fun at her with a video link to Sacha Baron Cohen’s Borat quote “You’ll Never Get This”. "Dear mariah yeeter...we have never met...so from the heart i just wanted to say... (sic),” he said last weekend alongside the link.