Pussycat Dolls‘ Nicole Scherzinger has made a special love video for boyfriend Lewis Hamilton to celebrate him becoming the Formula One World Champion.

The sexy singer posted the 40 second YouTube clip on the band’s official website congratulating Lewis and telling him how much she loves him.

Nicole, wearing a striped polo-neck and star-shaped earrings, gushed to camera: “I’m so excited I feel like I’m on top of the world right now.”

“Why? Because I want to congratulate my boyfriend Lewis Hamilton for being the official Formula One world champion!”

“Congratulations baby – I love you, I love you, I love you.”

“And anyone who’s not a Formula One fan then go be a Formula One [fan], and all you Formula One fans out there – be a Pussycat Doll fan, yeah.”

“Anyways it’s all about the love, and good times and good times call for thanks, gratitude and celebrations so we’re so thankful I love you, congratulations baby.”

Nicole, 30, joined 23-year-old British driver Lewis’ family in Sao Paulo on Sunday to watch him come fifth in the Brazilian Grand Prix, making him world champion.

The couple sparked rumours they are engaged when they were photographed leaving their hotel the next day with Nicole wearing a sparkler on her ring finger.

But the Mail Online reports she has denied any engagement.

CLICK BELOW to watch Nicole’s love video for Lewis Hamilton.