Madame Tussauds has unveiled two new waxworks of pop star Rihanna in Hollywood and Las Vegas.

Fans have continued to flock to the museums to get a glimpse of the life-like figures of the Diamonds singer since they made their debut earlier this week.

While both artworks have captured the singer during her redhead phase, they show the 24-year-old songstress sporting two very different looks.

The Sin City creation shows RiRi sporting a slightly shorter cropped hairstyle and a cream one-legged cat suit with white stripes lining the outfit. She holds a microphone in one hand.

For Hollywood she is immortalised in a huge pair of bright pink heels and her candy-coloured, beaded bikini from her 2011Loud Tour. The model poses with her arms in the air.

She now joins musicians including Lady Gaga, Gwen Stefani, Michael Jackson, Fergie, and Britney Spears who have also been honoured at the famed museum's Las Vegas and Hollywood locations.

Meanwhile, Rihanna is preparing to kick off her 777 tour to celebrate the release of her seventh studio album, Unapologetic.

She will perform intimate shows in seven cities including London, New York and Paris in seven days.

Announcing the tour on her website, Rihanna said: "I am so excited about the '777' tour. We are turning this jumbo jet into our tour bus. We are practically living on this thing for a week: sleeping, partying all together. Me, my fans, the press... it's going to be a wild ride.

"I wanted it to be a rock 'n' roll adventure, and I think when it's over it will be the coolest thing I've ever done. I'm that excited about it."