Nicole Scherzinger
Nicole Scherzinger is upset with reports that Lewis Hamilton is dating RihannaGetty

American recording artist/actress Nicole Scherzinger is reportedly upset that former boyfriend, Formula One racing driver Lewis Hamilton is dating Barbadian singer/actress Rihanna.

Hamilton was spotted on the same float as the B***h Better Have My Money hitmaker during the Kadooment Day Parade in Barbados, adding to speculation that the two are secretly dating.

According to Star magazine, the Your Love singer badly wants to "settle" with someone.

"This is yet more news that has hurt Nicole," a source said.

"They were together for so long that she finds it hard to hear about Lewis' other high-profile romances, and he sounds pretty smitten with Rihanna. It's especially tough because Nic wants to find someone special to settle with, and this is all a painful reminder that Lewis wouldn't commit to her," the insider added.

Scherzinger and Hamilton started dating in 2007, and have been in a on-again off-again relationship.

It was previously reported that the former X Factor judge was tired of Hamilton's refusal to commit.

During an interview with the Daily Telegraph, the 37-year-old Baby Love singer admitted that her busy career has taken a toll on her relationships with loved ones.

"I try not to regret things, because I feel like as long as you put positive energy towards something – and you put your whole self, your true self, towards it – it'll lead you to the next place you're supposed to be," she said.

"I look at this as a great blessing for me to be able to take on this role... but I have made sacrifices. This is very time consuming. I've left LA, left all my friends and my family. It's sacrificing your time in relationships, with loved ones, and my work..."